A photo that measures 5 in. by 7 in. is enlarged to 7.5 in. by $x$ in. What is $x$ ?

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Answer 1 · 2018-01-24T01:42:26

$x=10.5$

The original photo and the enlarged one must be similar.
Therefore, the ratio of the two edges are same.

$5:7.5=7:x$
$5*x=7.5*7$
$5x=52.5$
$x=10.5$

The longer side of the enlarged photo is $10.5$ inches.

A photo that measures 5 in. by 7 in. is enlarged to 7.5 in. by xx in. What is xx?