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rectangular photograph

by grandh01 » Thu Aug 09, 2012 7:37 pm
If a rectangular photograph that is 10
inches wide by 15 inches long is to be
enlarged so that the width will be 22
inches and the ratio of width to length
will be unchanged, then the length, in
inches, of the enlarged photograph will
be
(A) 33
(B) 32
(C) 30
(D) 27
(E) 25
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by truplayer256 » Thu Aug 09, 2012 8:10 pm
The key words are "The ratio of width to length will be unchanged." From this, we know that:

10/15 = 22/x where x is the length of the enlarged photograph.
x = (22)(15)/(10) = 33 inches

Choose A.
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