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The length of a rectangle is 1 less than 2 times the width. The area of the rectangle is 45 cm squared. find the length and width.

The length of a rectangle is 1 less than 2 times the width. The area of the rectangle is 45 cm squared. find the length and width.
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1 vote
The length of a rectangle is 1 less than 2 times the width. The area of the rectangle is 45 cm squared. find the length and width.

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User FabienP
by
8.5k points

1 Answer

6 votes
l=2w-1, lw=45
(2w-1)w=45
2w²-w-45=0
((w-5)(2w+9)=0
w=5
l=9
answered
User Jamal Abdul Nasir
by
7.4k points
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