Problema Solution
A rectangular table is three times as long as it is wide. If the area is 75ft square, find the length and the width of the table.
Answer provided by our tutors
let
l = the length of the table
w = the width of the table
a rectangular table is three times as long as it is wide
l = 3w
the area is 75ft square
l*w = 75
plug l = 3w into the last equation
3w*w = 75
by solving we find and consider the positive roots since the width can not be a negative number
w = 5 ft
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l = 3*5
l = 15 ft
the length is 15 ft while the width is 5 ft.