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09-12-2020
Mathematics

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the width of a rectangle is 15inches more than the length the perimeter is 90inches find the

Respuesta :

10-12-2020

Answer:

Step-by-step explanation:

we have W=L+15 and P=90 lets replace W with this equation

P=2L+2W=2L+2(L+15)=2L+2L+30=4L+30

90=4L+30

60=4L

where L=60/4=15

we have W=30, L=15

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