SOLUTION: Please help me solve this word problem step-by-step. (((The Perimeter of the rectangular is 320ft if the length is 5ft longer than twice the width. Find its length and width.)))

Question 147101: Please help me solve this word problem step-by-step.
(((The Perimeter of the rectangular is 320ft if the length is 5ft longer than twice the width. Find its length and width.)))
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
THe perimeter of a rectangle using length and width is given by,

For your case, the length is 5 ft longer than twice the width.
1.
You also know that
2.
Solve eq. 1 for 2W and substitute into eq. 2,
1.

Substitute into eq. 2 and solve for L.

From eq. 1,

Check your answers.

True.

True (off because of roundoff error).
Your answers led to true statement.
They are good answers.

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