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OpenStudy (anonymous):
Alex made a sketch for a poster contest. The sketch measures 4 in. × 5 in. The scale factor from the sketch to the finished poster was 2 in. to 5 in.
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OpenStudy (anonymous):
You need to find the scale factor as a single value. If it went from 2" to 5", that means the scale factor is 5/2 = 2.5 - meaning 5 is 2.5 times as big as 2 (and the finished poster is 2.5 times as big as the sketch).
OpenStudy (anonymous):
so would the final dimensions be 10 by 12.5
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