Rachel created 215 pairs of earrings. Material for the earrings were $0.25 a pair. At a craft fair rachel sells all 215 pairs of earrings and ends up with $3272.30. After factoring out the cost of materials how much money did rachel make on 1 pair of earrings.

Answer:

-28

Step-by-step explanation:

Remember the order of operations: pemdas (parenthesis, exponent, multiply, divide, add, subtract). Just simplify the expression.

22 - 53 + 3

(22-53) + 3

-31 + 3

-28

Answer:

Your answer is: -28

Simplify the expression.

Step-by-step explanation:

Hope this helped : )

Answer:

b=−5x+y

Step-by-step explanation:

Let's solve for b.

y=5x+b

Step 1: Flip the equation.

b+5x=y

Step 2: Add -5x to both sides.

b+5x+−5x=y+−5x

b=−5x+y

Answer:

4 miles ,each donor will owe $8 hope this helped!

Step-by-step explanation:

x=17

See attached picture

Answer:

False

Step-by-step explanation: it can have many

Answer:

{y,z,x} = {1/3,-13/3,1/3}

Step-by-step explanation:

Step by Step Solution:

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System of Linear Equations entered :

 [1]           -2y-3y+z=-6

 [2]           x+y-z=5

 [3]           7x+8y-6z=31

Equations Simplified or Rearranged :

  [1]    -5y + z = -6

  [2]    y - z + x = 5

  [3]    8y - 6z + 7x = 31

Solve by Substitution :

// Solve equation [2] for the variable  x

 [2]    x = -y + z + 5

// Plug this in for variable  x  in equation [3]

  [3]    8y - 6z + 7•(-y +z +5) = 31

  [3]    y + z = -4

// Solve equation [3] for the variable  z

 [3]    z = -y - 4

// Plug this in for variable  z  in equation [1]

  [1]    -5y + (-y -4) = -6

  [1]    -6y = -2

// Solve equation [1] for the variable  y

  [1]    6y = 2

  [1]    y = 1/3

// By now we know this much :

   y = 1/3

   z = -y-4

   x = -y+z+5

// Use the  y  value to solve for  z

   z = -(1/3)-4 = -13/3

// Use the  y  and  z  values to solve for  x

 x = -(1/3)+(-13/3)+5 = 1/3

Solution :

{y,z,x} = {1/3,-13/3,1/3}

Answer: Y=-5/2x+5(Idk i'm doing it off of my head)

Answer:

y=5/2x -5 slope is 5/2

Step-by-step explanation:

parallel lines have the same slope

Let's solve your equation step-by-step

2.4(x-6)=-5.6x+8

Step 1: simplify both sides of the equation

2.4(x-6)=-5.6x+8

(2.4)(x)+(2.4)(-6)=-5.6x+8 (distribute)

2.4x+-14.4=-5.6x+8

2.4x-14.4=5.6x+8

Step 2: Add 5.6x to both sides.

2.4x-14.4+5.6x=-5.6x+8+5.6x

8x-14.4=8

Step 3:Add 14.4 to both sides

8x-14.4+14.4=8+14.4

8x=22.4

Step 4 : Divide both sides by 8

8x/8 =22.4/8

Answer : x=2.8

Answer:

70

Step-by-step explanation:

verticle angles are congruent (the same) so if 1 is 110 than 4 is 110. also same side interior angles are supplementary (equal to 180) meaning 6 is 70. If verticle angles are congreunt then 7 also equals 70

Answer:

The answer to the question is 5 (positive 5)

Answer:

24 combinations

Step-by-step explanation:

For this problem, you use factorials. Factorials are when you multiply every number below it except zero. So like the factorial of 3 or 3! is 3*2*1 is 6.

Factorials are used to figure out how many combinations there are of something. So for you, we have 4 different quadrants so we write that as 4! (! is the sign for factorials.)

By the way, welcome to brainly.  

Answer:

the answer is: X=2

Answer:

x=1

Step-by-step explanation:

-34x+6=-28

       -6     -6

-34x=-34

-34     -34

x=1

Subtract 6 from both sides. on the left the 6 will be canceled out and on the right -28-6= -34

Than you divide -34 on both sides on the left the -34 will be canceled and on the right -34 divided bt-34 is positive 1. So x equals 1.

Answer:

Your answer is x = 11/17

Step-by-step explanation:

I gotchu!

Alright first, subtract 6 on both sides. After doing so, your equation should look like:

-34x = + 22

Then, divide -34 on both sides. Do not divide x though! The equation will look like:

x= -22/34

Now, let's simplify the answer. We can divide 22 and 34 by 2 so we will do that.

After simplifying, it should be 11/17.

Finally, keep it improper because you always should keep fractions improper when doing this.

Your answer is x = 11/17

Answer:

Yes it equals 1,800

Step-by-step explanation:

Hope that helps

Answer:

Yes, it does. Good job!

Step-by-step explanation:

Answer:

14 minutes

Step-by-step explanation:

In order to get the answer, we have to subtract the original amount of money on the phone card by the amount left over after the call:

15 - 12.76 = 2.24

Then, we divide this number by 0.16:

2.24 / 0.16 = 14

So, Heather's call lasted 14 minutes

Hope this helps :)

here is a link to the aneser hope it helps

The coordinates of the image of the point (4,5) after reflecting over the

the y-axis is (- 4, 5).

Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.

Dilation: The preimage is scaled up or down to create the image.

Reflection: The picture is a preimage that has been reversed.

Rotation: Around a given point, the preimage is rotated to create the final image.

Translation: The image is translated and moved a fixed amount from the preimage.

Given, A point (4, 5) is reflected over the y-axis.

We know points of coordinated (x, y) reflected over the x-axis becomes

(- x, y).

Therefore, The coordinate points (4, 5) after reflecting over the y-axis would be ( - 4, 5).

learn more about the transformation of figures here :

https://brainly.com/question/11709244

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The equation for the number of beats per minute is 55 beats per minute

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total number of beats be = A

Now , the value of A = 220 beats

The total time required for Sam to have 220 beats = 4 minutes

So , the number of beats of Sam in 1 minutes is calculated by

The equation will be

The number of beats of Sam in 1 minutes is = total number of beats  / total time required for Sam to have 220 beats

The number of beats of Sam in 1 minute is = 220 / 4

The number of beats of Sam in 1 minute is = 55 beats per minute

Therefore , Sam would have 55 beats every minute or 55 beats per minute

And for the period of 4 minutes , Sam would have

Number of beats for 4 minutes = number of beats of Sam in 1 minute x 4

Number of beats for 4 minutes = 55 x 4

Number of beats for 4 minutes = 220 beats in 4 minutes

Hence , The equation for the number of beats per minute is 55 beats per minute

To learn more about equations click :

https://brainly.com/question/10413253

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Answer:

-1/2

Step-by-step explanation:

The general rate of change can be found by using the difference quotient formula. To find the average rate of change over an interval, enter a function with an interval: f(x)=x2,[2,3]f(x)=x2,[2,3]

−12-12

Answer:

10.80 - 20 percent equals 8.64

Step-by-step explanation:

Answer: it’s 8.19

Step-by-step explanation:

Answer:

si

Step-by-step explanation:

lo aprendi el ano pasado si esta incorrecto me disculpo

Step-by-step explanation:

You multiply by 4/3 because you are essentially "dividing" both sides by 4/3. You have to take the reciprocal of 3/4 which is 4/3 in order to cancel out the 3/4 because 4/3 x 3/4 will be 1. So the problem will look like this:

(1/2)x + 2 = (3/4)y

4/3[(1/2)x + 2] = 4/3 x 3/4y

4/3[(1/2)x + 2] = y

4/6 x + 8/3 = y

y = 2/3(x) + 8/3

And then from here, if they gave a value for x and y, you can solve for the 2 variables.

Answer:

y=4/3x‒4

Step-by-step explanation:

first list the pairs as the following

{(3,0),(0,‒4)}

&prove your answer by substitute the pairs instead of x&y

when we substitute the pairs (3,0)

y=4/3x‒4

0=4/3(3)‒4

0=4‒4

0=0

when we substitute the pairs (0,‒4)

y=4/3x‒4

‒4=4/3(0)‒4

‒4=0-4

‒4=‒4

so i hope my answer helps you

Answer:

8.29

Step-by-step explanation:

Answer:

8.25? I'm so sorry i guessed

Step-by-step explanation: