SOLUTION: 14. The length of a rectangle is 9 in. more than twice its width. If the perimeter of the rectangle is 30 in., find the width of the rectangle.
A) 1 in.
B) 2 in.
C) 3 in.
D) 4
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Question 57831: 14. The length of a rectangle is 9 in. more than twice its width. If the perimeter of the rectangle is 30 in., find the width of the rectangle.
A) 1 in.
B) 2 in.
C) 3 in.
D) 4 in.
Thankyou for your time!!!
Answer by hayek(51) (Show Source): You can put this solution on YOUR website!
If l=length and w=width, we have two unknowns. We need two equations to solve for two unknowns.
The problem gives us both equations:
"The length of a rectangle is 9 in. more than twice its width" ==>
"perimeter of the rectangle is 30 in" ==>
Plug the first equation into the second:
Distribute:
inches
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