SOLUTION: A LAND MASS IS ROUGHLY IN THE SHAPE OF A RECTANGLE WHOSE PERIMETER IS 1200 MILES. THE WIDTH IS 80 MILES LESS THAN THE LENGTH. FIND THE LENGTH AND THE WIDTH.

Question 672459: A LAND MASS IS ROUGHLY IN THE SHAPE OF A RECTANGLE WHOSE PERIMETER IS 1200 MILES. THE WIDTH IS 80 MILES LESS THAN THE LENGTH. FIND THE LENGTH AND THE WIDTH.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

a perimeter of the rectangle:
if the length
and
then
......solve for

now find

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