Problema Solution
A rectangular table is three times as long as it is wide. If the area is 75ft^2, find the length and the width of the table.
Answer provided by our tutors
let
l = the length of the rectangular table
w = the width of the rectangular table
rectangular table is three times as long as it is wide
l = 3w
the area is 75ft^2
l*w = 75
plug l = 3w into the last equations
3w*w = 75
by solving we find and consider the positive roots since the width can not be negative
w = 5 ft
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l = 3*5
l = 15 ft
the length is 15 feet.
the width is 5 feet.