Problema Solution
The length of the rectangle is three times the width. The sum of the length and the width is 24 inches. What is the length of the rectangle?
Answer provided by our tutors
let
l = the length of the rectangle
w= the width of the rectangle
the length of the rectangle is three times the width
l = 3w
the sum of the length and the width is 24 inches
l + w = 24
by solving the system of equations
l = 3w
l + w = 24
we find
l = 18 in
w = 6 in
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the length is 18 inches.