Questions on Geometry: Angles, complementary, supplementary angles answered by real tutors!

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Question 150812: The length of a certain rectangle is 3 meters more than twice the width. What is the width of the rectangle if the perimeter of the rectangle is 90 meters?
Thanks,
Pat: The length of a certain rectangle is 3 meters more than twice the width. What is the width of the rectangle if the perimeter of the rectangle is 90 meters?
Thanks,
Pat
Answer by mangopeeler07(448) About Me  (Show Source):
You can put this solution on YOUR website!
width=w
length=2w+3

2(w)+2(2w+3)=90

Divide both sides by 2
(w)+(2w+3)=45

Combine like terms
3w+3=45

Subtract 3 from both sides
3w=42

Divide both sides by 3
w=14

width=w
length=2w+3

width=14
length=2(14)+3
length=28+3
length=31

Answer:
*width=14 meters*
length=31 meters