Problema Solution
A rectangular garden is 9 ft longer than it is wide. Its area is 252 ft2. What are its dimensions?
Answer provided by our tutors
let
l = the length of the garden, l>0
w = the width of the garden, w>0
A rectangular garden is 9 ft longer than it is wide
l = 9 + w
Its area is 252 ft^2
l*w = 252
plug l = 9 + w into l*w = 252
(9 + w)*w = 252
by solving we find
w = 12 ft
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l = 9 + 12 = 21 ft
the dimensions of the rectangular garden are 21 ft and 12 ft.