Problema Solution
The length of the top of a table is 5m greater than the width. The area is 66 m^2. Find the dimension of the table? What is the width and length of the table?
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let
l = the length of the table, l>0
w = the width of the table, w>0
A = 66 m^2 the area
The length of the top of a table is 5 m greater than the width:
l = w + 5
the area A = l*w thus
l*w = 66
plug l = w + 5 into the last equation
(w + 5)*w = 66
by solving we find
w = 6 m
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l = 6 + 5
l = 11 m
the length of the table is 11 meters while the width is 6 meters.