l=2w+14 P=88 WHAT IS LENGTH AND WIDTH

Question

l=2w+14          perimeter=88 what is length and width

 

Answer 1

I assume you are talking about a rectangle.

 

P = 2l + 2w

 

Substitute 2w+14 for l and 88 for P

 

88 = 2(2w+14) + 2w

88 = 4w+28+2w

88 = 6w+28

60 = 6w

w = 10

 

Plug w=10 into 2w+14.

 

l = 2*10+14 = 34

 

Answer 2

The perimeter is equal to the sum of all the sides and for a rectangle P = 2l +2w

Substitute in the given information and solve for w

88 = 2(2w + 14) + 2w

88 = 4w + 28 + 2w = 6w +28

60 = 6w

w = 10

solve for l

l = 2(10) + 14 = 34