SOLUTION: the area of a garden is 120 square feet. the length of the garden is 1 foot less then twice the width. what are the dimensions of the garden?

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Question 133823This question is from textbook
: the area of a garden is 120 square feet. the length of the garden is 1 foot less then twice the width. what are the dimensions of the garden? This question is from textbook

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
let w be the width.
l is the length or l=(2w-1).
w(2w-1)=120
2w^2-w-120=0
(2w+15)(w-8)=0
w-8=0
w=8 answer for the width.
2*8-1=16-1=15 for the length.
proof:
8*15=120
120=120