the length of a rectangle is 3 ft less than twice it's width.what are the dimensions of this rectangle if it's perimeter is 45ft?

Question

the length of a rectangle is 3 ft less than twice it's width.what are the dimensions of this rectangle if it's perimeter is 45ft?

 

Answer 1

Length = 2w - 3

 

2w + 2(2w - 3) = 45

2w + 4w - 6 = 45

6w = 51

w = 8.5

 

So, the length is 2(8.5) - 3 = 14

 

Hope this helps!