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ch4aika [34]
3 years ago
15

Josh paid for three books with two 20$ bills he received 1$ in change. Each book was the same price how much did each book cost

Mathematics
2 answers:
qaws [65]3 years ago
6 0
Each book costed 7$ 7 x 3 = 19
timofeeve [1]3 years ago
5 0
Each book was $6.33.
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solmaris [256]

Answer:

Pual needs 3 gallons

Step-by-step explanation:

∵ The dimensions of the four walls are:

   25 × 8 , 30 × 8 , 25 × 8 , 30 × 8

∴ The area of painting = 2(25 × 8) + 2(30 × 8)

                                     = 400 + 480 = 880 square feet

∵ each gallon paint 400 square feet

∴ The number of gallons = 880/400 = 2.2, so he needs 3 gallons

8 0
3 years ago
Consider the function represented by 9x+3y= 12 with x as the independent variable. How can this function be written using
Ivenika [448]

Answer:

f(x)=-3x+4

(can't see some of your choices)

Step-by-step explanation:

We want x to be independent means we want to write it so when we plug in numbers we can just choose what we want to plug in for x but y's value will depend on our choosing of x.

So we need to solve for y.

9x+3y=12

Subtract 9x on both sides

     3y=-9x+12

Divide both sides by 3:

     y=-3x+4

Replace y with f(x).

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6 0
3 years ago
What is the value of x?<br><br> Enter your answer in the box.<br> units<br><br> ___Units
kotykmax [81]

The value of x is 28 .

<h3>What is a Triangle ?</h3>

A triangle is a polygon with three sides , three angles and three vertices.

According to the Proportionality Theorem

When a line is parallel to one side and intersects the other lines at two different points then it divides both the line in similar ratio.

As in the given figure DC is parallel to AP ,

then RD : DP = RC:CA

42:15 = x: 10

42/15 = x / 10

x = 42 * 10 /15

x = 28

Therefore the value of x is 28 .

To know more about Triangle

brainly.com/question/2773823

#SPJ1

7 0
2 years ago
Refer to the figure below. If m&lt;60 degrees l, find the measure of the other angles. Show your work(or explain) to receive ful
gladu [14]
All of the angles combined =360 degrees

Vertical angles are congruent, so if angle 1 = 60, so does angle 3

Logically we have to find the measure of angle 4 and angle 2 combined and divide by 2

60 + 60 = 120

360 - 120 = 240

240 / 2 = 120

angle 4 = 120
angle 2= 120

angle 3 = 60

5 0
3 years ago
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