Question

The width of a rectangle is 8 more than the length. The perimeter of the rectangle is 56. What are the dimensions of the rectangle?

Answer 1

A=L*W
A=(L)(8+L)
P=2W+2L
P=2(8+L)+2L
P=56
56=16+2L+2L
56=16+4L
40=4L
L=10
A=(L)(8+L)
A=(10)(8+10)
A=180
The area is 180, the width is 18, and the length is 10.
Does that make sense?