Answer:
length=19, width=9
Explanation:
1) So if the length is a foot longer than twice its width, then lets say the width is x and the length is 2x+1
2) Since we are trying to figure out the perimeter we must add 2 lengths+2 widths which is supposed to give us 56:
2(2x+1) + 2(x) = 56
3) Simplify:
2(2x+1) + 2(x) = 56
4x+2 + 2x = 56 Distribute
6x + 2 =56 add 2x and 4x
6x = 54 subtract 2
x=9 divide
4) Put the x in:
length=2(9)+1 width=9
length=19