212k views
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.

User FabienP
by
5.6k 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
User Jamal Abdul Nasir
by
4.8k points