Question

The length of a rectangle is two

more than twice the width. The
area is 312 ft^2. Find the length
and width of the rectangle,

Answer 1

Answer: 16

Explanation:

Area = length * width

112 = (2w+2)*w

112 = 2w^2 + 2w

0 =2w^2 + 2w - 112

0 = w^2 + w - 56

0 = ( w + 8 )( w - 7 )

w+8=0 results in negative measures

w-7=0 --> w = 7

width is 7

length is 16