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schepotkina [342]
2 years ago
8

Can someone help me I give you 10 points

Mathematics
1 answer:
natka813 [3]2 years ago
7 0

Answer:

A:40%

B:7.8

Step-by-step explanation:

Using a proportion , you can solve for the bottom side.

13/19.5 = 5.2/x

multiply 19.5 and 5.2 and rewrite the equation

101.4=13x

x=7.8

To find the scale, divide 5.2 by 13

5.2/13=0.4

Double check by dividing 7.8 by 19.5

7.8/19.5=0.4

0.4=40%

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3 years ago
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Nadusha1986 [10]
Hello!

The first step to solving this equation would be to distribute the 8 to x+7 to simplify the equation:
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The second step would be to then subtract 56 from both sides to isolate 8x:
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