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February 28, 2015

February 28, 2015

Posted by **Lea** on Monday, January 25, 2010 at 10:32pm.

- math -
**Ed**, Monday, January 25, 2010 at 10:40pmus 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 10:40pmThis 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 9:16pm7.6x-3.5x= -123

- math -
**ron**, Tuesday, July 13, 2010 at 9:17pm7.6x-3.5x= -123

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