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15-06-2020
Mathematics

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The length of a rectangle is one foot more than twice the width. The area is 55 square feet. Find the dimensions of the rectangle.

Respuesta :

mhanifa mhanifa

15-06-2020

Answer:

5 ft and 11 ft

Step-by-step explanation:

l= 2w+1
A=lw= 55
w(2w+1)=55
2w²+w-55=0

integer solution of quadratic equation is:

w=5 ft

l= 2*5+1=11 ft

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