1cm on a picture of a swimming pool represents 1200cm of the actual swimming pool. The length of the pictured swimming pool is 4.5cm and the width is 3cm. What is the perimeter of the actual swimming pool? Express your answer in meters.
Answer:
180 meters
Step-by-step explanation:
To find the perimeter of the actual swimming pool, you need to first find the length and width of the actual swimming pool by multiplying the length and width of the pictured swimming pool by the scale factor of 1200 cm.
Length of actual swimming pool = 4.5 cm × 1200 cm = 5400 cmWidth of actual swimming pool = 3 cm × 1200 cm = 3600 cmPerimeter of actual swimming pool = (5400 cm + 3600 cm) × 2 = 18000 cm.Now that we know that the perimeter of the actual pool is 18000 centimeters, we need to convert that to meters! Keep in mind that:
100cm = 1mNow we can divide 18000 by 100:
18000 cm ÷ 100 = 180 m
Therefore, the perimeter of the actual swimming pool is 180 m.
16 families went on a trip which cost them Rs 2,16,352. How much did each
family pay?
Given that 16 families went on a trip and the cost of the trip was Rs. 2,16,352.The amount paid by each family is to be determined by unitary method Hence each family paid Rs.13522
Now, let's solve this by using the method of unitary method. To find the cost of 1 family trip, we will divide the total cost of the trip by the number of families.2,16,352 / 16 = 13,522 So, the cost of the trip per family is Rs. 13,522.Hence, each family paid Rs. 13,522 for the trip.
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Answer:
Step-by-step explanation
1. The total cost of the trip for all 16 families is Rs 2,16,352.
2. To find out how much each family paid, we need to divide the total cost by the number of families: Rs 2,16,352 ÷ 16.
3. When we do the division, we get the result: Rs 13,522.
Now let's check if this result is correct:
1. If each family paid Rs 13,522 for the trip, then the total cost for all 16 families would be: 16 × Rs 13,522 = Rs 2,16,352.
2. This is exactly the same as the total cost given in the problem statement.
So we have shown that each family paid **Rs 13,522** for the trip
A meteorologist predicted that there would be 1.0 inches of rainfall from a storm. Instead, there were 2.2 inches of rainfall. Which statements are true?
The prediction was off by 35%
If the percent error should be less than 60% the prediction was acceptable
The percent error of the prediction was about 55%
If the percent error should be less than 20%, the prediction was acceptable
The difference between the predicted and actual rainfall was 1.2 inches
The statements are true is: C. The percent error of the prediction was about 55%. E. The difference between the predicted and actual rainfall was 1.2 inches.
How to find the percentage error?Percentage error can be calculated using this formula
Percentage error = Actual value observed - Expected value /Expected value
Percentage error = 2.2 - 1.0 / 2.2
Percentage error = 1.2 /2.2
Percentage error = 0.545 × 100
Percentage error = 55% (Approximately)
Difference between the predicted and actual rainfall;
Difference = Actual rainfall - Predicted rainfall
Difference = 2.2 -1.2
Difference = 1.2 inches.
Therefore the correct statement is option C and E.
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If the coordinate (-6,3) was translated 3 units down and 4 units to the right, what would be the coordinate of the image?
A.(-9,7)
B.(-10,0)
C.(-2,0)
D.(-3,7)
Answer:
C. (-2,0) **See diagram**
Step-by-step explanation:
For a coordinate system, the origin is the point located at (0,0).
Any coordinate ordered pair (x,y) is given with the x-coordinate (the "left-right" distance from the origin) first, and the y-coordinate (the "up-down" distance from the origin) second.
With the given starting point (-6,3), the original point is to the left (in the negative "x" direction) 6 units, and up (in the positive "y" direction) 3 units.
the y-coordinate
To translate (slide or move) the point down 3 units would affect the y-value by subtracting 3. The original y-value is 3, so subtracting 3 will give a new y-value result of 0.
the x-coordinate
To translate the point right 4 units would affect the x-value by adding 4. The original x-value is -6, and we need to add 4.
Adding positive and negative numbers
When adding two numbers where one is positive and one is negative, we'll want to look at the magnitude ("size," or distance from zero) of the two numbers. Negative six is 6 units from zero, and positive four is 4 units from zero.
When adding one positive and one negative number, the result has a sign matching the number with the larger magnitude, and a value that is the difference of their two magnitudes.
The negative six is the larger number, so the result will be negative.
The difference between 4 and 6 is 2 (counting from 4 up to 6 takes two steps... or differently, six minus four is two).
So adding 4 to -6 will give a new x-value result of -2.
Hence, the final point (as illustrated in the diagram), is (-2,0), which is answer choice C.
Ming throws a stone off a bridge into a river below.
The stone's height (in meters above the water), xxx seconds after Ming threw it, is modeled by:
h(x)=-5(x-1)^2+45h(x)=−5(x−1)
2
+45h, left parenthesis, x, right parenthesis, equals, minus, 5, left parenthesis, x, minus, 1, right parenthesis, squared, plus, 45
How many seconds after being thrown will the stone reach its maximum height?
Answer:
1 seconds after being thrown, the stone reaches its max height
Step-by-step explanation:
Answer:1 Seconds Is wrong the correct answer is 2
Step-by-step explanation:
Khan said so
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Dee’s Catering Budget vs. Actual Comparison for December 2010
a. What is the variance (dollar and percent) in Dee’s total cost of sales for the month of December? Answer: $32,051 and 12.8%
b. To what do you attribute the variance in Dee’s total cost of sales for December?
c. What is the variance (dollar and percent) in Dee’s salaries and wages for the month of December? Answer: $6,100 and 15.7%
d. To what do you attribute the variance in Dee’s salaries and wages for December?
e. What is the variance (dollar and percent) in Dee’s marketing expenses for the month of December? Answer: $-1.050 and -87.5%
f. What advice would you give Dee regarding her marketing expense variance?
I need help with answering these questions. Letter B, D, and F.
Walton's actual check average is $9.52
The actual food cost is lower than the flexible budget by $5020
We have ,
Net income considered a vital financial metric of an organization, delineates the earned sum after deducting expenses and taxes from total revenue.
The measure is indicative of the profitability status of an entity, portraying cash flow left over subsequent to settling all obligations. To uncover net income, business expenditures spanning across areas such as salaries, interest payments and rents alongside taxations are subtracted from entire receipts.
Ascertaining net income facilitates assessing the fiscal robustness and future prospects of a company for interested investors.
Hence, Walton's actual check average is $9.52
The actual food cost is lower than the flexible budget by $5020
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complete question:
A. What was Watson’s actual check average? Was this higher or lower than the original budget and flexible budget check average?
b. Were Watson’s actual food sales higher or lower than the flexible budget? By how much? Was this favorable or unfavorable?
c. Was Watson’s actual food cost higher or lower than the original budget? Why do you think this is so?
d. Was Watson’s actual food cost higher or lower than the flexible budget? By how much? Was this favorable or unfavorable? How can Watson use this information in his report to his general manager?
e. Were Watson’s variable salaries, wages, and benefits higher or lower than the original budget?
f. Were Watson’s variable salaries, wages, and benefits higher or lower than the flexible budget? By looking at both the original budget and the flexible budget, what conclusion can you draw about Watson’s ability to control his labor costs?
g. Was Watson’s actual net income higher or lower than the flexible budget? By how much? Was this favorable or unfavorable?
h. Overall, how do you think Watson is doing at meeting the budget goals set by the general manager? How should he respond to his general manager’s claim that his department is operating at a “sub-par” performance level?
HURRY TIMED!!!!
Find the equation of the graphed line.
On a coordinate plane, a line goes through (0, negative 6) and (6, 0).
a.
y = negative x minus 6
c.
y = x minus 6
b.
y = x + 6
d.
y = negative x + 6
Answer:
y = x -6
Step-by-step explanation:
First find the slope
m= ( y2-y1)/(x2-x1)
= (0- -6)/(6-0)
=( 0+6)/(6-0)
= 6/6
= 1
The slope is 1 and the y intercept is -6
The slope intercept form is
y = mx+b where m is the slope and b is the y intercept
y = x -6
Answer:
the answer is C
Step-by-step explanation:
y = x -6
Find the equation of a line containing the point (8,3) and
has a slope of 5. Write the equation in slope-intercept form.
Answer:
y=5x-37
Step-by-step explanation:
y-y1=m(x-x1)
y-3=5(x-8)
y=5x-40+3
y=5x-37
X
If the edges of a rectangular prism are increased by a scale factor of 3, how will the volume change
O A. The new volume is 3 times the old volume,
B. The new volume is 9 more than the old volume.
O C. The new volume is 9 times the old volume,
D. The new volume is 27 more than the old volume,
O E. The new volume is 27 times the old volume,
9514 1404 393
Answer:
E. The new volume is 27 times the old volume
Step-by-step explanation:
If L, W, and H are the original length, width, and height, then the original volume is ...
V = LWH
The volume after the scale factor is applied is ...
V' = L'W'H' = (3L)(3W)(3H) = 27LWH = 27V
The new volume is 27 times the old volume.
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(aza)0.4314, find a. Round to two decimal places.
The z-score of the given expression P(-a < z < a) = 0.4314 is; 0.55
How to Interpret Normal Distribution?We are told that P(-a < z < a) = 0.4314. Thus;
P(-a < z < a) = 0.4314 is represented by the area about mean. This means that; 0.4314/2 = 0.2157 is the area each on the left side and right side of mean.
Now, from online z-score calculator, we see that the z value corresponding to 0.2157 is 0.55.
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1, if P(-a < z < a) = 0.4314, then it means that the z score is 0.55.
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Complete question is;
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(−a < z < a) = 0.4314, find d a. Round to two decimal places
Using the data in the table, which statement is true?
The true statement is mean > median
How to determine the true statement?The mean is the average value.
So, we have
Mean = Sum/Count
This gives
Mean = (8 * 1 + 10 * 3 + 14 * 2)/(1 + 3 + 2)
Evaluate
Mean = 11
The mode is the measure with the highest frequency.
So, we have
Mode = 10
The median is the middle element
So, we have
Median = 10
The mean (11) is greater than the mode and the median
Hence, the true statement is mean > median
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What is the slope of the line that contains these points?
x
xx
−
1
−1minus, 1
0
00
1
11
2
22
y
yy
10
1010
18
1818
26
2626
34
3434
slope:
its on khan academy
HURRY
20 PTS AND BRAINLIEST TO RIGHT ANSWER
Answer:h45
Step-by-step explan
The slope of the points will be equal to 1.
What is a slope?Slope or the gradient is the number or the ratio which determines the direction or the steepness of the line. The slope of the line is the ratio of the rise of the line to the run of the line.
Given that the points of the line are (0,0), (1,1), and (2,2). The slope of the line will be calculated as,
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Slope = ( 2- 1 ) / ( 2- 1 )
Slope = 1 / 1
Slope = 1
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The rectangular rug is similar to the rectangular floor. If the floor of the room measures 32 feet in length and 26 feet in width, what is the width of the rug?
The width of the rectangular rug is 13 feet and the length of the rectangular rug is 26 feet.
What is the step to calculate the area of the rectangle?Area of a rectangle formula: A = L * W. A
rectangle's length and width are multiplied to produce its area.
A is the area, L is the length, and W is the width or girth, where
A = L * W.
The corresponding sides of the rectangular rug and the rectangular floor must be proportional if they are alike.
Let's use "x" to represent the rug's width. The floor measures 32 feet in length and 26 feet in width, and the length of the rug is 16 feet according to the details provided. Since the rug and the surface are comparable, we can establish the following ratio:
Rug width/floor width = rug length/floor length
x / 26 = rug's length / 32
We can cross-multiply and then solve for "x" to find the answer:
32x = 26 * Rug's length
x = (26 * Rug Length) / 32
\(= \frac{26 * 16}{32} \\= \frac{26}{2} \\= 13\)
Therefore x ( the width of the rug) is = 13 feet.
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Complete question:
The rectangular rug is similar to the rectangular floor. If the floor of the room measures 32 feet in length and 26 feet in width, and the length of the rug is 16 feet, what is the width of the rug?
A rectangle has the following vertices. Find the area of the rectangle. (9, −1), (−1, 7), (−5, 2), (5, −6)
Answer: 82 sq. units .
Step-by-step explanation:
Let A (9, −1), B (−1, 7), C(−5, 2), D(5, −6) are the vertices of rectangle.
Then we plot them on graph ( as provided in attachment)
Length = AB \(=\sqrt{(9+1)^2+(-1-7)^2}\) units [By distance formula : \(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)]
\(=\sqrt{(10)^2+(-8)^2}=\sqrt{100+64}=\sqrt{164}=2\sqrt{41}\) units
Width = BC = \(\sqrt{(-1+5)^2+(7-2)^2}\) units
\(=\sqrt{4^2+5^2}\\\\=\sqrt{16+25}\\\\=\sqrt{41}\)
Area = length x width
= \(2\sqrt{41}\times\sqrt{41}=2\times41= 82\text{ sq. units}\)
Hence, the area of the rectangle is 82 sq. units .
Estimate the measure of ∠BCD to the nearest 10
Answer: 120 degrees.
Step-by-step explanation: A 90-degree angle would be a right angle. The segments would be perpendicular. In a 180-degree angle, the line would be flat. This angle is between these two angle measures. It appears quite close to a 120-degree angle such as the one shown below:
Because of this, I would estimate that the angle is around 120 degrees. It may be 130 degrees or 110 degrees but it appears to be approximately 120 degrees.
A maintenance technician sights the top of a telephone pole at a 25° angle of elevation as shown. Technician Telephone Pole Determine the horizontal distance between the technician and the base of the telephone pole to the nearest tenth of a foot. Enter your answer in the box.
Answer:
\(x = 375.3\)
Step-by-step explanation:
Given
See attachment for illustration
Required
Determine the horizontal distance
The horizontal distance is the distance between the technician and the base of the pole.
Represent this with x.
The relationship between x, 175ft and 25 degrees is represented as:
\(tan(25^{\circ}) = \frac{175}{x}\) --- i.e. tan formula
Multiply both sides by x
\(x * tan(25^{\circ}) = \frac{175}{x} * x\)
\(x * tan(25^{\circ}) = 175\)
Make x the subject
\(x = \frac{175}{tan(25^{\circ})}\)
\(x = \frac{175}{0.4663}\)
\(x = 375.294874544\)
\(x = 375.3\) --- approximated
The distance is approximately 375.3ft
Determine the equation of the circle with center (0, -2) containing the point
(√12,-5).
Answer:
i think its
x^2 + (y + 2)^2 = 21.
Step-by-step explanation:
Please I really need help with this
Answer:
(-20x -25)/(x^2-x-30)
Step-by-step explanation:
You want to simplify the rational expression (3x²)/(x²-x-30) -(3x+5)/(x-6).
Use a common denominatorUsually these problems are constructed so that the higher-degree polynomial denominator has the lower degree denominator as a factor. That is the case here.
\(\dfrac{3x^2}{x^2-x-30}-\dfrac{3x+5}{x-6}=\dfrac{3x^2}{(x+5)(x-6)}-\dfrac{(x+5)(3x+5)}{(x+5)(x-6)}\\\\=\dfrac{3x^2-(3x^2+20x+25)}{x^2-x-30}\)
Simplify\(=\boxed{\dfrac{-20x-25}{x^2-x-30}}\)
_____________are opposite angles that share the same vertex. They are formed by a pair of intersecting lines. Their angle measures are equal.
Answer:
vertical angles
Step-by-step explanation:
vertical angles are opposite angles that share the same vertex. They are formed by a pair of intersecting lines. Their angle measures are equal.
Find the volume of the solid figure.
The volume of the composite solid found using the volumes of cuboids is 510 cm³.
What is a cuboid?
A cuboid is a six-sided solid known as a hexahedron in geometry. Quadrilaterals make up its faces. A cuboid is similar to a cube in that a cuboid can become a cube by varying the lengths of the edges or the angles between the faces. Another name for a cuboid is a rectangular prism. Three dimensions, including length, breadth, and height, define a cuboid. A cuboid with integer edges is referred described as being perfect. The base rectangular face multiplied by the height gives a cuboid's volume.
This figure can be considered a composite figure consisting of two cuboids.
The total volume is the sum of the volumes of the larger and the smaller cuboids.
Larger cuboid dimensions
length l = 5cm
width w = 7cm
Height h = 12 cm
Volume V = l * w * h = 5 * 7 * 12 = 420 cm³
Smaller cuboid dimensions
length l = 5cm
width w = 2cm
Height h = 9 cm
Volume v = l * w * h = 5 * 2 * 9 = 90 cm³
The volume of the figure = V + v = 420 + 90 = 510cm³
Therefore the volume of the composite solid found using the volumes of cuboids is 510 cm³.
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Write the standard form equation for an
ellipse with vertices: (4, 10) and (-12, 10)
and foci: (2, 10) and (-10, 10)
Check the picture below, so the ellipse looks more or less like so
\(\textit{ellipse, horizontal major axis} \\\\ \cfrac{(x- h)^2}{ a^2}+\cfrac{(y- k)^2}{ b^2}=1 \qquad \begin{cases} center\ ( h, k)\\ vertices\ ( h\pm a, k)\\ c=\textit{distance from}\\ \qquad \textit{center to foci}\\ \qquad \sqrt{ a ^2- b ^2} \end{cases} \\\\[-0.35em] ~\dotfill\)
\(\begin{cases} h=-4\\ k=10\\ a=8 \end{cases}\implies \cfrac{(x- (-4))^2}{ 8^2}+\cfrac{(y- 10)^2}{ b^2}=1\implies \cfrac{(x+4)^2}{ 8^2}+\cfrac{(y- 10)^2}{ b^2}=1 \\\\\\ \stackrel{\textit{we know that c = 6}}{6=\sqrt{8^2 - b^2}}\implies 6^2=8^2-b^2\implies b^2=8^2-6^2\implies \underline{b^2=28} \\\\\\ \cfrac{(x+4)^2}{ 8^2}+\cfrac{(y- 10)^2}{ b^2}=1\implies {\Large \begin{array}{llll} \cfrac{(x+4)^2}{ 64}+\cfrac{(y- 10)^2}{ 28}=1 \end{array}}\)
what is 3 1/4 as an improper fraction a imprper fraction?
Answer:
13/4
Step-by-step explanation:
3×4=12
12+1=13
Your welcome
Answer:
13/4
Step-by-step explanation:
given g(x) = -x + 4 solve for x when g(x) = 0
Answer:
\(x=4\)
Step-by-step explanation:
-x + 4 equals 0.
Substitute 4 for x:
\(g(4)=-4+4\)
Simplify:
\(g(4)=0\)
\(x=4\)
PLEASE HELP!!!!!!!!!
Answer:
g^15/8h^6
Step-by-step explanation:
I put your question into a math calculator and got this. It's your question simplified.
find the surface area of the prism
Answer: 132 cm cubed
Step-by-step explanation:
0.5*3*4*2=12
10*5=50
4*10=40
3*10=30
30+40+50+12=132 cm cubed
Express the given repeating decimal as a quotient of integers. If possible, reduce to lowest terms.
Answer:
4
Step-by-step explanation:
Jack is w years old now. His brother is 3 years older than he is now. If his brother is x years old, express x in terms of w. state the independent and dependent variables in the equation.
The age of Jack's brother is 13 years.
What is a linear function?A linear function has a straight line as its graph. A linear function has the form shown below.
a + bx = y = f (x).
A linear function consists of one independent variable and one dependent variable. The independent and dependent variables are x and y, respectively.
If Jack is w years old now, then his brother is w + 3 years old now.
Let x be the age of Jack's brother, then we have:
x = w + 3
In this equation,
the independent variable is w, which represents Jack's age,
and the dependent variable is x, which represents his brother's age.
So if we know Jack's age, we can use this equation to find his brother's age.
For example, if Jack is currently 10 years old, then his brother is:
x = w + 3 = 10 + 3 = 13
Therefore, his brother is 13 years old.
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please help me in this question
When shape P is enlarged by the scale factor and the centre, the new coordinates would be (2, 6), (6, 6), (0, 8), and (4, 8).
How to enlarge the shape ?The current coordinates are:
( 1 , 3 ) ( 3, 3 ) ( 0, 4 ) and ( 2, 4 )
The new coordinates, with an expansion of 2 would be:
Point 1:
New coordinates: (1 x 2, 3 x 2) = (2, 6)
Point 2:
New coordinates: (3 x 2, 3 x 2) = ( 6, 6 )
Point 3:
New coordinates: ( 0 x 2, 4 x 2) = ( 0, 8 )
Point 4:
New coordinates: (2 x 2, 4 x 2) = ( 4, 8 )
The enlarged figure would have coordinates at (2, 6), (6, 6), (0, 8), and (4, 8).
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sam has read 56 pages of a 224page book what percentage of the book has he read
Answer:
25%
Step-by-step explanation:
(56/224)*100
Answer:
25%
Step-by-step explanation:
56 pages of 224 pages
56/224
= 1/4
1/4 = 0.25
1/4 & 0.25 = 25%
-3w-4+5w=32 what is the solution?
Answer:
w = 18
Step-by-step explanation:
Step 0: Set up the equation
=> -3w - 4 + 5w = 32
Step 1: Move the same variable together
=> -3w + 5w = 32 + 4
Step 2: Add up and simplify
=> 2w = 36
Step 3: Divide both by 2
=> w = 18
Answer:
W=18
Step-by-step explanation:
-3w-4+5w=32
-3w+5w-4=32
2w-4=32
2w=32+4
2w=36
W=18