SOLUTION: find the length and width of a rectangular sandbox, where the length is 3 feet longer than its width if you are building it with 30 feet of lumber?

Question 1134966: find the length and width of a rectangular sandbox, where the length is 3 feet longer than its width if you are building it with 30 feet of lumber?
Answer by mathsolverplus(88) (Show Source): You can put this solution on YOUR website!
Perimeter given: 30feet
l=length
w=width
l = 3 + w
perimeter = (length + width)2
30 = (3+w+w)2
15 = 3+2w
12 = 2w
w =6
If w=6, l=9
Length = 9 feet
Width = 6 feet

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