Answer:
y = 3x - 9
Step-by-step explanation:
First, find the slope using rise/run (y2 - y1) / (x2 - x1)
Plug in the points:
(36 - 21) / (15 - 10)
15/5
= 3
Next, plug the slope and a point into the equation y = mx + b to find b (y-int)
y = mx + b
21 = 3(10) + b
21 = 30 + b
-9 = b
Then, plug this into the equation, as well as the slope:
y = 3x - 9
f f(x) = x2 + 1 and g(x) = x – 4, which value is equivalent to (f circle g) (10)?
37
97
126
606
Functions f(x) = x² + 1 and g(x) = x – 4, the value equivalent to f(g(10)) is, 37
What are functions?Function is a relation between a set of inputs and a set of outputs which are permissible. In a function, for particular values of x we will get only a single image in y. It is denoted by f(x).
Vertical line test:-
Whenever we want to check whether a given expression is a function or not we can apply a vertical line test, in this test we check for a single image of x , we are getting a single image or more.
If we get more images then it will not be a function.
For example, let us take, y² = 4ax
y = ±√4ax
For single value of x we get two values of y
Hence, it will not be a function.
Given that,
f(x) = x² + 1
g(x) = x – 4
f(g(10)) = ?
f(g(x)) = (x - 4)² + 1
= x² - 8x + 16 +1
= x² - 8x + 17
f(g(10)) = 10² - 8×10 + 17
= 100 - 80 + 17
= 37
The value of f(g(10)) is 37
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Pls answer this question
Answer:
2.5 cm
Step-by-step explanation:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Arsha predicted that she would sell 225 magnets. She actually sold 240 magnets. What are the values of a and b in the table below? Percent Error Item Approximate value Exact value Error Absolute error Ratio Percent error Magnets 225 240 a b a = Negative StartFraction 15 over 225 EndFraction; b = negative 6.7 percent a = Negative StartFraction 15 over 240 EndFraction; b = negative 6.25 percent a = StartFraction 15 over 240 EndFraction; b = 6.25 percent a = StartFraction 15 over 225 EndFraction; b = 6.7 percent
Answer:
c
Step-by-step explanation:
In art class students are mixing blue and red paint to make purple paint. Isaiah mixes 3 cups of blue paint and 7 cups of red paint. Casho mixes 4 cups of blue paint and 13 cups of red paint. Use Isaiah and Casho's percent of red paint to determine whose purple paint will be redder.
Based on the percent of red paint, Casho's purple paint will be redder than Isaiah's.
To determine whose purple paint will be redder based on the percent of red paint, we need to compare the ratios of red paint to the total paint used by Isaiah and Casho.
Isaiah's Ratio:
Isaiah mixes 3 cups of blue paint and 7 cups of red paint, making a total of 3 + 7 = 10 cups of paint.
To calculate the percent of red paint, we divide the amount of red paint (7 cups) by the total amount of paint (10 cups) and multiply by 100 to get the percentage:
Red paint percentage for Isaiah = (7 cups / 10 cups) * 100 = 70%
Casho's Ratio:
Casho mixes 4 cups of blue paint and 13 cups of red paint, making a total of 4 + 13 = 17 cups of paint.
To calculate the percent of red paint, we divide the amount of red paint (13 cups) by the total amount of paint (17 cups) and multiply by 100 to get the percentage:
Red paint percentage for Casho = (13 cups / 17 cups) * 100 = 76.47% (rounded to two decimal places)
Comparing the percentages, we can see that Casho's purple paint will be redder because Casho's paint has a higher percentage of red paint (76.47%) compared to Isaiah's paint (70%).
Therefore, based on the percent of red paint, Casho's purple paint will be redder than Isaiah's.
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4. Solve the polynomial.
7x³ + 21x² - 63x = 0
After solving the given polynomial (7x³ + 21x² - 63x = 0), the value of x are (x = 0) and {x = [(-3 ± 3√5)/2]}
What is a polynomial?An expression that consists of variables, constants, and exponents and is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial (No division operation by a variable). A polynomial is a mathematical expression made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables. x² 4x + 7 is an illustration of a polynomial with a single indeterminate x.So, 7x³ + 21x² - 63x = 0:
Now, solve for x as follows:
7x³ + 21x² - 63x = 07x(x² + 3x - 9) = 0Zero factor principal, if ab = 0, then a = 0 and b = 0.
x = 0 and x² + 3x - 9 = 0Now, x² + 3x - 9 = 0:
x = [(-3 ± 3√5)/2]x = 0Therefore, after solving the given polynomial (7x³ + 21x² - 63x = 0), the value of x are (x = 0) and {x = [(-3 ± 3√5)/2]}
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I need help asap please!!!
The values of the angles given are: 0,90,180,240,270,360,420,480,540,600,630,660,720 and
What is sine of angles?he sine of an angle is the trigonometric ratio of the opposite side to the hypotenuse of a right triangle containing that angle. It is defined as the length of the opposite side divided by the length of the hypotenuse
The given angles are: 0,30,45,90,120,135,180,210,225,240,270,300,315,330,360
2∅ 2*∅ = 0, 90,180,240,270,360,420,480,540,600,630,660,720
sin 2∅ = sin0 = 0; Sin90=1; sin180=0; sin240= -0.8660; sin270 = -1;
Each angle is multiplied by sine sine360 =1; sin420 = 0.8660; sin480= 0.9848; sin540=1; sin600=-0.8660; sin630=-1; sin660=0.8660; sin720= 0.9397
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What is the volume of the prism 2.4in 1.5in 8in
Answer:
The answer is 28.8, When finding the Volume of a shape, you multiply all numbers.
Chloe has 3 red pencils, 5 blue pencils, and 1 yellow pencil in her backpack. She chooses one pencil at random, puts it back, and then chooses another pencil .
The probability that Chloe chooses a blue pencil and then a red pencil is
The probability that Chloe chooses the yellow pencil and then a blue pencil is
No links please :)
Answer:
A) P(chooses a blue pencil and then a red pencil) = 5/27
B) P(chooses yellow then blue) = 5/81
Step-by-step explanation:
She has 3 red pencils, 5 blue pencils, and 1 yellow pencil in her backpack
Thus;
total number of pencils = 3 + 5 + 1 = 9 pencils
A) probability that she chooses a blue pencil and then a red pencil;
P(blue) = 5/9
Now she puts it bag after choosing which means the sum is back to 8 pencils.
Thus, if she now chooses a red pencil, then P(red) = 3/9 = 1/3
Thus;
P(chooses a blue pencil and then a red pencil) = 5/9 × 1/3
P(chooses a blue pencil and then a red pencil) = 5/27
B) probability that Chloe chooses the yellow pencil and then a blue pencil;
Similar to A above;
P(yellow) = 1/9
P(blue) = 5/9
P(chooses yellow then blue) = 1/9 × 5/9
P(chooses yellow then blue) = 5/81
Help me asap I’ma give u brainlest if u do
Answer:
The answer is b..
Step-by-step explanation:
hope its helpful
Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need? Dmitri will need [Blank] glass tiles. The dimentions are...26 , 15, 8.
The number of tiles needed to cover the surface area of the box excluding the bottom is: 1,046 tiles.
What is the Surface Area of a Box?The surface area of a box is the area surrounding all its faces. A box has 6 rectangular faces. Therefore, the total surface area of the box equals the sum of all 6 rectangular faces.
What is the Surface Area of a Box?SA = 2(lw + lh + hw), where:
l = lengthw = widthh = height of the boxThe image attached below shows the box Dmitri wants to cover. Since the bottom of the box would be excluded, therefore:
The surface area to be covered = surface area of the box - area of the bottom rectangular face
The surface area to be covered = 2(lw + lh + hw) - (l)(w)
l = 26
w = 15
h = 8
Substitute
The surface area to be covered = 2(l×w + lh + hw) - (l)(w) = 2·(15·26+8·26+8·15) - (26)(15) =
The surface area to be covered = 1436 - 390 = 1,046 cm
Area of one tile = 1 cm square
Number of tiles needed = 1,046/1
Number of tiles needed = 1,046 tiles.
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Hi I need help finding the degree measure of Radian on a triangle with hypotenuse =7 and opposite =3
Answer:
24.6 degrees.
Step-by-step explanation:
To find the degree measure of the radians in a right triangle with hypotenuse = 7 and opposite = 3, we need to use trigonometric ratios. Since the opposite and hypotenuse are given, we can use the sine ratio.
sin(θ) = opposite/hypotenuse
sin(θ) = 3/7
Now we need to find the angle measure θ. We need to use the inverse sine or arcsine function to do this.
θ = sin^-1(3/7)
θ ≈ 0.429 radians
To find the degree measure, we must convert radians to degrees by multiplying by 180/π.
θ ≈ 0.429 x 180/π
θ ≈ 24.6 degrees
Therefore, the degree measure of the radians in the given triangle is approximately 24.6 degrees.
You and a friend are hiking and find yourselves near the top of a waterfall. There is a path to hike down that takes 1.8 miles to reach the bottom safely and go swimming. There is also a path that is 1.3 miles down to a great place to eat lunch. Your friend wants to stay at the top of the waterfall and fly his drone overhead to take pictures from the sky. A drone is a flying robot that can be remotely controlled with computer software or technology. Draw a vertical number line to help you answer the questions.
Part A: the drone would need to fly up 1.3 miles Part B: the drone would need to fly up 1.8 miles. Part C: the value of zero represents the top of the waterfall . Part D: the absolute value of -1.8 is the same as the absolute value of 1.8, we have shown that you hiked the same distance in both directions.
Describe Distance?It can be measured in various units such as meters, kilometers, feet, miles, etc. In mathematics, the distance between two points in a coordinate plane can be calculated using the distance formula, which is derived from the Pythagorean theorem. The distance formula is:
d = √[(x2 - x1)² + (y2 - y1)²]
Where (x1, y1) and (x2, y2) are the coordinates of the two points and d is the distance between them
Part A: The distance from the top of the waterfall to the place where you eat lunch is 1.3 miles, so the drone would need to fly up 1.3 miles
Part B: The distance from the top of the waterfall to the place where you go swimming is 1.8 miles, so the drone would need to fly up 1.8 miles
Part C: In this problem, the value of zero represents the top of the waterfall where you and your friend are currently located.
Part D: Let x be the distance you hiked to go swimming, and let y be the distance you hiked to go back to the top to meet your friend. Then, the total distance you hiked is the sum of the absolute values of x and y, which can be written as |x| + |y|. Since you hiked down 1.8 miles to go swimming and then hiked back up 1.8 miles to the top, x = -1.8 and y = 1.8. Substituting these values, we get |(-1.8)| + |1.8| = 1.8 + 1.8 = 3.6. Since the absolute value of -1.8 is the same as the absolute value of 1.8, we have shown that you hiked the same distance in both directions.
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The complete question is :
Noah and Lin both solved the equation 14a-2(a-3). Do you agree with either of them?
Answer= yes because we are solving for a and 3 divided 1/3=6
Step-by-step explanation:
Substituting a=-12 into the original equation yields a true statement, so their solutions are correct.
Answers vary. There are at least two solution paths to this equation: you can divide each side by 5 first, then collect like terms, or you can distribute and collect like terms, then continue to solve.
Answers vary. There are still two solution paths to this equation, but one is much simpler than the other. Since not all the terms are multiples of 4, dividing first by 4 will give a fractional coefficient of x on one side. Therefore, distributing first and then collecting like terms and solving is the simpler solution path.
Describe the transformation of LM to L'M'.
10-8
10%
8
6 M
2
6
-8
M
4 6 8 10
OA. LM is translated 5 units left and 2 units up to L'M'.
O B. LM is translated 5 units right and 2 units down to L'M'.
OC. LM is reflected over the x-axis to L'M
O'D. LM is reflected over the yaxis to L'M'.
Applying a translation of 5 units left and 2 units up to LM yields the transformed figure L'M' and choice A.
What does the graph's rendering look like?A graph can be moved either laterally or vertically parallel to the -axis, and this movement is called a translation.
LM can be converted to L'M' by carefully following the steps below:
The coordinates (10, -8) are translated 5 units left and 2 units up, which means that the location is obtained by deducting 5 from the x-coordinate and adding 2 to the y-coordinate. (5, -6).
Due to its location on the y-axis, the point (10%, 8) does not shift.
The translation of the point (8, 6M) is 5 units left and 2 units up, which indicates Consequently, we need to add 2 to the y-coordinate and remove 5 from the x-coordinate to get the point. (3, 8M).
The coordinates of the point (2, 6) are moved 5 units to the left and 2 units to the up, giving us the coordinates of the point. (-3, 8).
The translation of the point (6, -8) is 5 units left and 2 units up, so we deduct 5 from the x-coordinate and add 2 to the y-coordinate to get the point. (1, -6).
The point (-8, M) is translated 5 units to the left and 2 units to the right, so we take 5 off the x-coordinate and add 2 to the y-coordinate to get the point. (-13, M).
The key argument (4, 6) is translated as 5 units to the left and 2 units to the up, which means we take 5 away from the x-coordinate and add 2 to the y-coordinate to get the location. (-1, 8).
The coordinates (6, 8) are moved 5 units left and 2 units up, which means we need to deduct 5 from the x-coordinate and add 2 to the y-coordinate to get the new coordinates. (1, 10).
As a consequence, option A is produced by applying a translation of 5 units to the left and 2 units to the up to LM, yielding the transformed figure L'M'.
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Give the name of the parent function of y = 2[x-5]
The parent function of the transformed function is y = f ( x ) = x
Given data ,
Let the parent function be represented as f ( x )
Now , the value of f ( x ) is
The transformed function is represented as y
where y = 2 ( x - 5 )
On simplifying , we get
y = 2( x - 10 )
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
The function is shifted horizontally left by 10 units and multiplied by a scale factor of 2 units.
Hence , the parent function is f ( x ) = x
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Forced vital capacity (FVC), a standard measure of pulmonary function, is the volume of air a person can expel in 6 second. The standardized FVC follows approximately a standard normal distribution. A child is considered to have a normal long growth if his or her standardized FVC is within 1.5 standard deviation of the mean. The probability that a child is within the normal range of long growth is ______________.
Answer: the probability that a child is within the normal range of long growth is 0.8664
Step-by-step explanation:
Given that;
A child is considered to have a normal long growth if his or her standardized FVC is within 1.5 standard deviation of the mean.
he probability that a child is within the normal range of long growth = ?
so we need to find
P( -1.5 < z < 1.5)
which can also be represented as;
⇒2 × ( 0 < z < 1.5)
so we have
⇒ 2 × 0.4332
= 0.8664
Therefore the probability that a child is within the normal range of long growth is 0.8664
Explain how #4 relates to the diagram shown above? (i only need help with number 4 please!) Thank you :)
We have the following:
The first thing is to determine when it is bigger.
In this case x are 4 parts and y are 5 parts, therefore, y is larger, therefore
\(y=\frac{5}{4}x\Rightarrow y=1.25x\)Therefore, the answer is the option 2 y = 1.25*x
An arrow is shot from 3 ft above the top of a hill with a vertical upward velocity of 108 ft/s. If it strikes the plain below after 9.5 s, how high is the hill?
If the arrow is launched at t0, then write an equation describing velocity as a function of time?
The height of the hill is approximately 25.73 ft. Where v0 is the initial velocity (108 ft/s), g is the acceleration due to gravity \((-32.2 ft/s^2)\),
To find the height of the hill, we can use the formula for the vertical position of an object under constant acceleration:
h = h0 + v0t + 1/2at^2
where h is the final height, h0 is the initial height, v0 is the initial velocity, t is the time, and a is the acceleration due to gravity (-32.2 ft/s^2).
In this case, we are given that the initial height h0 is 3 ft, the initial velocity v0 is 108 ft/s, and the time t is 9.5 s. We want to find the height of the hill, which we can denote as h_hill. The final height is the height of the plain, which we can denote as h_plain and assume is zero.
At the highest point of its trajectory, the arrow will have zero vertical velocity, since it will have stopped rising and just started to fall. So we can set the velocity to zero and solve for the time it takes for that to occur. Using the formula for velocity under constant acceleration:
v = v0 + at
we can solve for t when v = 0, h0 = 3 ft, v0 = 108 ft/s, and a = -32.2 ft/s^2:
0 = 108 - 32.2t
t = 108/32.2 ≈ 3.35 s
Thus, it takes the arrow approximately 3.35 s to reach the top of its trajectory.
Using the formula for the height of an object at a given time, we can find the height of the hill by subtracting the height of the arrow at the top of its trajectory from the initial height:
h_hill = h0 + v0t + 1/2at^2 - h_top
where h_top is the height of the arrow at the top of its trajectory. We can find h_top using the formula for the height of an object at the maximum height of its trajectory:
h_top = h0 + v0^2/2a
Plugging in the given values, we get:
h_top = 3 + (108^2)/(2*(-32.2)) ≈ 196.78 ft
Plugging this into the first equation, we get:
h_hill = 3 + 108(3.35) + 1/2(-32.2)(3.35)^2 - 196.78
h_hill ≈ 25.73 ft
If the arrow is launched at t0, the equation describing velocity as a function of time would be:
v(t) = v0 - gt
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Write an expression equivalent to 2/3 (x-6)
Answer:
2/3x-4
Step-by-step explanation:
2/3*x=2/3x
2/3*6=4
Finding a cubic function in exercises 61 and 62, find a,b,c, and d such that the cubic f(x) - ax^3 + bz^2 + cz + dsatisfies the given conditions. 61. relative maximum: (2,4) Relative minimum: (4,2) Inflection point: (3,3)
-12a is a cubic function in exercises when Relative minimum (4,2).
What in mathematics is a relative maximum?
A point (x,y) on the graph of the function whose y-coordinate is larger than all other y-coordinates on the graph at locations "near to" is known as a relative maximum point (x,y). ( x , y ) .
f'(x) = 3ax² + 2bx + c
(3,3) and (5,1 ) are print of relative maximum
so, f'(3) = f'(5) = 0
3a(3)² + 2b(3) + c = 0
or 27a + 6b + c = 0
and 3a(5)² + 2b(5) + c = 0
75a + 10b + c = 0 ...................... 2
the Inflection point occurs at point where f''(x) = 0
d/dx ( 3ax² + 2bx + c ) ∫x = 4 = 0
because (4,2) is point of Inflection .
6a(4) + 2b = 0
24a + 2b = 0
b = -12a
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In ΔJKL, the measure of ∠L=90°, KL = 14 feet, and LJ = 95 feet. Find the measure of ∠K to the nearest degree
Answer:82
Step-by-step explanation:
solve the system of equations using the of substitution 8x+4y=15, x+y=3
Hi there!
\(\large\boxed{x = \frac{3}{4}, y = \frac{9}{4}}}\)
8x + 4y = 15
x + y = 3
Use the second equation to solve for a particular variable since it is easier to isolate. We can begin by solving for y:
x + y = 3
Subtract y from both sides:
x = -y + 3
Substitute in this expression for x into the other equation:
8(-y + 3) + 4y = 15
Distribute and simplify:
-8y + 24 + 4y = 15
-4y + 24 = 15
-4y = -9
y = 9/4
Substitute in this value of y to solve for x:
8x + 4(9/4) = 15
8x + 9 = 15
8x = 6
x = 6/8 = 3/4
The values respectively are:
x = 3/4, y = 9/4
Dante is a software salesman. Let represent his total pay (in dollars). Let represent the number of copies of History is Fun he sells. Suppose that and are related by the equation 2400+120x=y
Considering the given linear function, we have that:
The change for each copy that he sells is of $120.If he sells no copies, he makes $2400.What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.His payment for x copies bought is:
y = 120x + 2400.
Hence:
The change for each copy that he sells is of $120, as the slope is of $120.If he sells no copies, he makes $2400, which is the y-intercept.More can be learned about linear functions at https://brainly.com/question/24808124
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What is the value of the
expression? 1 7/8 - 6/4
A rectangular block has a length of 8 inches, a width of 3.5 inches, and a height of 2 inches. Four blocks are stacked to create a tower. What is the volume of the tower? O A. 56 in 3 O B. 140 in 3 O C. 280 in O D. 336 in
The volume of the tower is 224 in³, which is not listed among the given options.
To find the volume of the rectangular block, we need to multiply its length, width, and height. Therefore, the volume of the single block is:
8 x 3.5 x 2 = 56 cubic inches.
Since we are stacking four blocks to create a tower, we need to multiply the volume of a single block by 4.
Thus, the volume of the tower is:
56 x 4 = 224 cubic inches.
The volume of a rectangular block can be found using the formula,
V = length × width × height.
In this case, the length is 8 inches, the width is 3.5 inches, and the height is 2 inches.
V = 8 × 3.5 × 2 V
= 28 × 2 V
= 56 in³
Now that we know the volume of one block, we can find the volume of the tower created by stacking four blocks. Tower volume = block volume × number of blocks Tower volume = 56 in³ × 4 Tower volume = 224 in³
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The Buffalo football team wanted to buy new footballs for their practice. They got a discount and had to pay $42 per 6 footballs. what did the team have to pay per football? Be sure to explain all of your work.
Answer:
it would be 7 dollars per football
Step-by-step explanation:
\(42 \div 6\)
Translate the sentence into an inequality.
Ten subtracted from the product of 5 and a number is less than -29.
Use the variable x for the unknown number.
Answer:
-29>(5*x)-10
Step-by-step explanation:
Answer:
-29 > 5x - 10
Step-by-step explanation:
Since it says PRODUCT in there it means its times
so 5x
x = a number
ten subtracted from that would be
5x - 10
and since its going to be less than -29 that would be <-29
-29 > 5x - 10
sorry if Im wrong
-4.46(j + 19)= -8.92
\(-4.46(j + 19)= -8.92\)
Distribute:
\((-4.46)(j)+(-4.46)(19)=-8.92\)
\(-4.46j-84.74=-8.92\)
Add 84.74 to both sides:
\(-4.46j-84.74+84.74=-8.92+84.74\)
\(-4.46j=75.82\)
Divide both sides by -4.46:
\(\dfrac{-4.46j}{-4.46} =\dfrac{75.82}{-4.46}\)
\(=\fbox{j = -17}\)
A new is being built in Safety Harbor. The perimeter of the rectangular playing field is 582 yards. The length of the field is 4 yards less than quadruple the width. What are the dimensions of the playing field?
The dimensions of the rectangular field are given as follows:
Length: 232 yards.Width: 59 yards.How to obtain the perimeter of a rectangle?The perimeter of a rectangle is given by twice the sum of the length and the width of the rectangle, as follows:
P = 2(l + w).
For this problem, the perimeter is of 582 yards, hence:
2(l + w) = 582
l + w = 291.
The length of the field is 4 yards less than quadruple the width, hence:
l = 4w - 4.
Then the width is obtained as follows:
4w - 4 + w = 295
5w = 295
w = 295/5
w = 59.
The length is obtained as follows:
l = 4 x 59 - 4
l = 232 yards.
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if monique wanted to run 7/8 mile and she went to the school track which was one quater of a mile long how lany laps would she have to run
Which of the following questions could I use to find the answer check all that apply.
A. L x 1/4=7/8. YES OR NO
B. 7/8 x 1/4 = L. YES OR NO
C. 7/8 X 4=L. YES Or NO
D. L/ 7/8 = 1/4. YES OR NO
hURRY
if Monique wanted to run 7/8 mile and she went to the school track which was one quarter of a mile long. The number of lap Monique will complete is
C. 7/8 X 4 = L. What is a lap in race?One complete lap around a track or across a pool, from one end to the other: The track has 400 meters or approximately 25 mile per lap.
A lap is end to end of a track and in the problem a lap is 1/4 mile and Monique wants to complete 7/8 miles'. the comparison is as follows
assuming the number of laps is L
1 lap = 1/4 mile
L laps = 7/8 miles
cross multiplying
1 * 7/8 = L * 1/4
multiplying by 4 for each side
1 * 7/8 * 4 = L * 1/4 * 4
1 * 7/8 * 4 = L * 1
7/8 * 4 = L
hence option C is correct
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