Help plslsllsl its due tmr

Mathematics

1 answer:

olga55 [171]3 years ago

6 0

X=12.5
If the perimeter is 90
90=3x+3x+15
Combine like terms
90=6x+15
Subtracts 15 from both sides
75=6x
Divide by six to get x by itself
12.5=x
Does this help?

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Work Shown:

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