Posted by Lea on Monday, January 25, 2010 at 10:32pm.
a photo 5 inches wide and 7 inches long is enlarged. The sides of the new photo are in proportion to the original. The new photo is 14 inches wide. how do i find the length

math  Ed, Monday, January 25, 2010 at 10:40pm
us proportions, then cross multiply:
5/7 = 14/x
5*x = 7*14
5x = 98
5x/5 = 98/5
x = 19.6 inches in length

math  Ms. Sue, Monday, January 25, 2010 at 10:40pm
This is a good problem for a proportion. Let x equal the new length.
5/14 = 7/x
Cross multiply:
5x = 98
x = 19.6

math  ron, Tuesday, July 13, 2010 at 9:16pm
7.6x3.5x= 123

math  ron, Tuesday, July 13, 2010 at 9:17pm
7.6x3.5x= 123
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