SOLUTION: The perimeter of a rectangle is 70m. The length is 5m more than twice the width. Find the dimensions. What is the length and what is the width?

Question 452530: The perimeter of a rectangle is 70m. The length is 5m more than twice the width. Find the dimensions.
What is the length and what is the width?
Answer by pedjajov(51) (Show Source): You can put this solution on YOUR website!
Rectangle has two sides, width=w and length=l.
:
Its perimeter is
Its area is
:
Perimeter is 70:

:
The length is 5m more than twice the width:

:
Substitute w from first equation into the second:

, this is length
:

, this is width
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