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January 30, 2015

January 30, 2015

Posted by **icabob** on Thursday, December 15, 2011 at 5:28pm.

- math -
**Ms. Sue**, Thursday, December 15, 2011 at 5:40pmUse a proportion:

3/5 = x/7

Cross multiply and solve for x.

5x = 21

x = 21/5

x = 4.2"

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