Janice makes 3 identical charm bracelets for her friends. Each bracelet is
made with 2 charms and a $4 chain. If x represents the cost of each charm,
which model represents the total cost of the bracelets that Janice makes?
Let cost of each charm be \(x\)
The cost of \(2\) charms would be \(2x\)
One chain is used in each of the three bracelets which costs \(\$4\).
So, cost of one bracelet for one of her friends would be
\(2x+4\)
Since, Janice makes three identical charm bracelets it would cost \(3(2x+4)\) in total.
Learn more:
https://brainly.com/question/11897796
https://brainly.com/question/21835898
Moe is 8 years older than Zach. If twenty years ago Moe was 3 times as old as Zach, what are their present ages.Moe: 32 Zach: 24Please include the steps taken to get the answer.
Moe's present age = 32
Zach's present age = 24
Explanations:Let Moe's present age be represented by m
Let Zach's present age be represented by z
Moe is 8 years older than Zach now
m = z + 8..........(1)
Twenty years ago, Moe's age would be m - 20
Twenty years ago, Zach's age would be z - 20
Twenty years ago, Moe's age was three times that of Zach
m - 20 = 3(z - 20)
m - 20 = 3z - 60
m = 3z - 60 + 20
m = 3z - 40..........(2)
Let equations (1) and (2) be equal to each other:
z + 8 = 3z - 40
3z - z = 8 + 40
2z = 48
z = 48 / 2
z = 24
Substitute the value of z into equation (1)
m = z + 8
m = 24 + 8
m = 32
Moe's present age = 32
Zach's present age = 24
Solve 0.21 x 2 = ________. Use the model to help you find the product. (1 point)
a model partitioned into one hundred equal parts, with twenty one parts shaded blue and twenty one parts shaded red
0.58
0.42
0.19
0.10
Answer:
0.42
Step-by-step explanation:
<3
what are the coordinates of the point on the directed line segment from (-4,7) to (7,-4) that partitons the segment into a ration of 6 to 5?
The coordinates of the required point are (1,2).
How to find the coordinates of the point that partitions the segment
To find the coordinates of the point that partitions the segment from (-4,7) to (7,-4) into a ratio of 6 to 5, we need to use the section formula:
Let the coordinates of the required point be (x,y).
Then, according to the section formula, we have:
x = [(5)(7) + (6)(-4)]/(5+6) = (35 - 24)/11 = 11/11 = 1
y = [(5)(-4) + (6)(7)]/(5+6) = (-20 + 42)/11 = 22/11 = 2
Therefore, the coordinates of the required point are (1,2).
Learn more about segment here : brainly.com/question/28322552
#SPJ1
Please help me I’ll make u brainliest I swear please
Since the provided equation is inconsistent, it cannot intersect.
What is equation?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.
Here,
we can see that the second set of equation,
4x+2y=12
20x+10y=30
4/20=2/10≠12/30
1/5=1/5≠2/5
The given equation is inconsistent so it does not intersect.
To know more about equation,
https://brainly.com/question/2228446
#SPJ1
can some1 help pls (worth 10 points) *NO LINKS*
25ft 12ft who can help with this question
Answer:
Area = 300
Perimeter= 74
Diagonal= 27.73
Step-by-step explanation:
Area= 25*12= 300
Perimeter= 2(25+12)
Diagonal= \sqrt{12^2+25^2}
Answer:
area = 300 sq ft
Step-by-step explanation:
to find area you multiply length by width, length 25ft width 12ft
25
x12
300
for the following exercises, find the lengths of the missing sides if side a is opposite angle a, side b is opposite angle b, and side c is the hypotenuse.
Using relations in a right triangle and the Pythagorean Theorem, it is found that the missing side lengths are as follows:
a = 14.4.c = 15.24.What are the relations in a right triangle?There are three relations in a right triangle, given as follows:
The sine of an angle of the triangle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.The cosine of an angle of the triangle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.The tangent of an angle of the triangle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.For this problem, we have that:
tan(A) = b/a.
Hence:
5/12 = 6/a
Applying cross multiplication, the side a is found as follows:
5a = 72
a = 72/5
a = 14.4.
What is the Pythagorean Theorem?The Pythagorean Theorem relates the length of the legs \(l_1\) and \(l_2\) of a right triangle with the length of the hypotenuse h, stating that the hypotenuse squared is the sum of the legs squared, according to the following equation:
\(h^2 = l_1^2 + l_2^2\)
Hence the hypotenuse c is given as follows:
c² = 5² + 14.4²
c = sqrt(5² + 14.4²)
c = 15.24.
What is the missing information?For the triangle, we have that:
tan A = 5/12.b = 6.More can be learned about relations in a right triangle and the Pythagorean Theorem at https://brainly.com/question/26396675
#SPJ1
Given the surge function C(t) = 10t.e-0.5t, at t = 1, C(t) is: Select one: decreasing at a maximum increasing at an inflection point
At t = 1, the surge function C(t) is increasing and decreasing at an inflection point.
To determine the behavior of the surge function C(t) at t = 1, we need to analyze its first and second derivatives.
The first derivative of C(t) with respect to t is:
C'(t) = 10e^(-0.5t) - 5te^(-0.5t)
The second derivative of C(t) with respect to t is:
C''(t) = 2.5te^(-0.5t) - 10e^(-0.5t)
To find out whether C(t) is decreasing or increasing at t = 1, we need to evaluate the sign of C'(t) at t = 1. Plugging in t = 1, we get:
C'(1) = 10e^(-0.5) - 5e^(-0.5) = 5e^(-0.5) > 0
Since C'(1) is positive, we can conclude that C(t) is increasing at t = 1.
To determine whether C(t) is increasing at an inflection point or decreasing at a maximum, we need to evaluate the sign of C''(t) at t = 1. Plugging in t = 1, we get:
C''(1) = 2.5e^(-0.5) - 10e^(-0.5) = -7.5e^(-0.5) < 0
Since C''(1) is negative, we can conclude that C(t) is decreasing at an inflection point at t = 1.
In summary, at t = 1, the surge function C(t) is increasing and decreasing at an inflection point.
The fact that the second derivative is negative tells us that the function is concave down, meaning that its rate of increase is slowing down. Thus, even though C(t) is increasing at t = 1, it is doing so at a decreasing rate.
To know more about inflection point refer here :
https://brainly.com/question/31582579#
#SPJ11
In the diagram shown below PS is perpendicular to RT and the two lines intercept at W. Ray WQ is drawn. Which of the following statements about angle pairs in incorrect?
Answer:
D. angle SWT and angle QWT are complementary
Step-by-step explanation:
The angles formed at W when the two lines, PS and RT, which are perpendicular to each other intercept at W are right angles.
Thus, let's analyse each given statements to see which is true or not true about the angle pairs formed:
Statement 1: "angle PWQ and angle QWT are complementary".
m<PWT = 90°.
m<PWQ + m<QWT = m<PWT (angle addition postulate)
m<PWQ + m<QWT = 90° (definition of complementary angles)
Therefore, statement 1 is CORRECT.
Statement 2: "angle PWR and angle TWP are supplementary".
m<PWR = 90°
m<TWP = 90°
m<PWR + m<TWP = 180° (definition of supplementary angles)
Therefore, statement 2 is CORRECT.
Statement 3: "angle RWQ and angle TWQ are supplementary".
<RWQ and <TWQ are angles on a straight line and are a linear pair.
m<RWQ + m<TWQ = 180° (definition of supplementary angles)
Therefore, statement 3 is CORRECT.
Statement 4: "angle SWT and angle QWT are complementary".
m<SWT = 90°
Therefore, m<SWT + m<QWT ≠ 90°
The sum of both angles does not give 90°. Therefore, statement 4 is INCORRECT.
The square below represents one whole.
What percent is represented by the shaded area?
Answer:
0.85.Step-by-step explanation:
We know that:
this grid is 1 whole.We don't know:
how much is shaded in.Let's count up by tenths:
0.10.20.30.40.50.60.70.8It suddenly stops at 0.8.
Let's count up by hundredths:
0.810.820.830.840.85It stops at 0.85.
0.85 is your answer.
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Answer:
5 days
Step-by-step explanation:
Since the burrito stand uses 1/2 of a bag of tortillas, take 2 1/2 divided by 1/2 to find how many days the tortillas will last.
2.5/0.5 = 5 days
2. Simplify the expression (5-3i) (-7 - 31) - (6-2i). Show your work
Answer:
\( - 50 + 8i\)
Step-by-step explanation:
\(1. \: - 35 - 15i + 21i - 9 - (6 - 2i) \\ 2. \: - 35 - 15i + 21i - 9 - 6 + 2i \\ 3. \: ( - 35 - 9 - 6) + ( - 15i + 21i + 2i) \\ 4. \: - 50 + 8i\)
Use the diagram to find the value of x to the nearest tenth of a foot.
a. 74.6 ft.
b. 5.3 ft.
c. 15.5 ft.
d. 73.3 ft.
Answer:
a
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan15° = \(\frac{opposite}{adjacent}\) = \(\frac{20}{x}\) ( multiply both sides by x )
x × tan15° = 20 ( divide both sides by tan15° )
x = \(\frac{20}{tan15}\) ≈ 74.6 ft ( to the nearest tenth of a foot )
The volume of an eraser is 9.6cm3. If its height is 0.8cm,find the area of its base.
Find the inverse function in slope-intercept form (mx+b):
f(x) = -x + 6
switch the variables
x = -y + 6
x - 6 = -y
-x + 6 = y
Actually help PLSS
(will give brainliest)
Let's see point E in its original position: (3.-4)
Now lets transform the point (x,y) --> (x + 8, y +5)
(3, -4) --> (3 + 8, -4 + 5) --> (11, 1)
Therefore coordinate E's new position is (11, 1)
Hope that helps!
what is -9-2(7-1) simplified??? please i really need help FAST
Answer:
-21
Step-by-step explanation:
In a class of students, the following data table summarizes how many students passed
a test and complete the homework due the day of the test. What is the probability that
a student chosen randomly from the class passed the test?
Completed the homework
Did not complete the homework
Passed the test Failed the test
12
2
4
3
Answer:
20/27
Step-by-step explanation:
Is 3.456 a irrational number?
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Points A and B are the endpoints of an arc of a circle. Chords are drawn from the two endpoints to a third point, C, on the circle. Given m AB =64° and ABC=73° , mACB=.......° and mAC=....°
Measures of angles ACB and AC are is m(ACB) = 64°, m(AC) = 146°
What is the measure of angle ACB?Given that m(AB) = 64° and m(ABC) = 73°, we can find the measures of m(ACB) and m(AC) using the properties of angles in a circle.
First, we know that the measure of a central angle is equal to the measure of the intercepted arc. In this case, m(ACB) is the central angle, and the intercepted arc is AB. Therefore, m(ACB) = m(AB) = 64°.
Next, we can use the property that an inscribed angle is half the measure of its intercepted arc. The angle ABC is an inscribed angle, and it intercepts the arc AC. Therefore, m(AC) = 2 * m(ABC) = 2 * 73° = 146°.
To summarize:
m(ACB) = 64°
m(AC) = 146°
These are the measures of angles ACB and AC, respectively, based on the given information.
Learn more about angles in circles
brainly.com/question/23247585
#SPJ11
The radius of a circle is 17 m. Find its area in terms of pi.
Answer:
289m²
Step-by-step explanation:
Area of circle =πr²=π×17²=289m² when r=radius =17m
Which point is located on the x-axis?
D
4
А
3
BE
2+
1
C
-4 -3 -2 -1
-1
1
2
3
4 X
-2+
-3+
4
Answer:
point C ad B located on the x axis
order the fallowing numbers least to gratest -4 2 3 1
PLEASE I NEED HELP
A car traveled 180 miles at a constant rate. If the car traveled for 5 hours,
what was the rate of travel (in miles per hour) of the car?
Answer:
36 mph
Step-by-step explanation:
In this question, we are trying to find how many miles the car drives PER hour.
We know that the car traveled 180 miles, and within the travel it took the car 5 hours.
To find your answer, we would simply divide 180 by 5 to see how many miles she drove per hour.
Solve:
180/5 = 36
This means that the rate of travel of the car is 36 mph.
Compare the linear functions expressed below by data in a table and by an equation.
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 6, negative four-thirds, 1, 4. Column 2 is labeled y with entries negative StartFraction 9 Over 2 EndFraction, negative 1, three-fourths, 3. y = three-fourths x.
Which of the following statements are true? Select all that apply.
If the equation were graphed, it would be a horizontal line.
Both functions have the same slope.
The origin is the y-intercept for the function expressed in the table.
The linear equation does not have a y-intercept.
The table and the graph express an equivalent function.
Answer:
b,c,e
Step-by-step explanation:
need help on this equation
Answer:
x =1Step-by-step explanation:
Given the following DE = 4X-2
EF = 3x+2
FG 5x-3
GD = 2x+5
Since DE is parallel to GF, this means that the sides are equal hence;
4x - 2 = 5x - 3
4x - 5x = -3 + 2
-x = -1
x = 1
Hence the value of x is 1
describe what happening in this graph.
The happening in the graph is that the speed of the roller skater increases and decreases with time
How to interpret the graphFrom the question, we have the following parameters that can be used in our computation:
The graph
On the graph, we have the following axes
x-axis = Time
y-axis = Speed
The x-axis is continually increasing while the y-axis decreases and increases (as in a sine function)
This means that the speed increases and decreases with time
Read more about graphs at
https://brainly.com/question/24335034
#SPJ1
A graph titled velocity versus time has horizontal axis time (seconds) and vertical axis velocity (meters per second). A line has 4 straight segments. Line segment A runs from 0 seconds 0 meters per second to 1 seconds 15 meters per second. Then segment B runs to 2 seconds 20 meters per second. Then segment C runs to 4 seconds 20 meters per second. Then segment D runs to 5 seconds 0 meters per second.
The acceleration of segment D is
m/s2.
Rank segments A, B, and C from least acceleration to greatest acceleration.
Least:
Greatest:
Answer:
the anwser is C
Step-by-step explanation:
i just got it right like 5 seconds ago
Answer:
its A C E
Step-by-step explanation:
The solution set of Ax = b is the set of all vectors of the form w = p + vh where vh is any solution of the equation Ax = 0. TRUE
FALSE
When we have a system of linear equations of the form Ax = b, where A is a matrix of coefficients, x is a vector of variables, and b is a vector of constants, the solution set of the system is the set of all possible solutions that satisfy the equations. The statement "The solution set of Ax = b is the set of all vectors of the form w = p + vh where vh is any solution of the equation Ax = 0" is a true statement.
To understand why this statement is true, we first need to consider the concept of a homogeneous system of linear equations. A homogeneous system of linear equations is a system of equations where the constant vector b is zero. In other words, the equations in the system only involve the variables, and there are no constant terms.
If we have a homogeneous system of linear equations Ax = 0, we can find a solution vector vh that satisfies the system. This vector is called a homogeneous solution or a null space solution. It represents a vector that, when multiplied by the matrix A, results in the zero vector.
Now, if we have a non-homogeneous system of equations Ax = b, we can find a particular solution vector p that satisfies the system. This vector represents a specific solution to the equations that is not necessarily a homogeneous solution.
The statement in question is true because the solution set of the non-homogeneous system Ax = b can be expressed as the sum of a particular solution p and any linear combination of homogeneous solutions vh. In other words, any solution vector w that satisfies the system can be expressed as w = p + vh, where vh is any solution of the equation Ax = 0.
This is because when we add a homogeneous solution to a particular solution, we get another solution of the system. This is because when we multiply A by the sum of a particular solution and a homogeneous solution, we get A(p + vh) = Ap + Avh = b + 0 = b, which satisfies the original system.
In summary, the statement "The solution set of Ax = b is the set of all vectors of the form w = p + vh where vh is any solution of the equation Ax = 0" is true because any solution vector w that satisfies the non-homogeneous system Ax = b can be expressed as the sum of a particular solution p and any linear combination of homogeneous solutions vh. This is because adding a homogeneous solution to a particular solution gives another solution of the system, and any solution of the homogeneous system is a valid homogeneous solution.
For more such questions on Homogeneous system of linear equations.
https://brainly.com/question/30504189#
#SPJ11