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I need help on math:(
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I need help on math:(

I need help on math:(-example-1
User Usman Liaqat
by
3.4k points

1 Answer

6 votes

Answer:

A. 10

Explanation:

The perimeter is the sum of all the outside lengths

Therefore, to find the value of x, you must do:

x + x + 5 + x + 7 = 42

3x + 12 = 42

3x = 30

x =10

User Martin Weitzmann
by
3.6k points
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