<PRE><B>Question 235662</B>
the width of a rectangular poster is one half of its length. the area of the poster is 128sq ft what is the width of the poster?
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Let the length be x :
Then the width is x/2:
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Equation:
Area = length * width
128 = x*(x/2)
x^2 = 256
x^2-256 = 0
x^2-2^8 = 0
(x-2^4)(x+2^4) = 0
Positive Solution:
x = 16 ft.
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x/2 = 8 ft. (width)
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Cheers,
Stan H.</PRE>