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September 1, 2014

September 1, 2014

Posted by **KC** on Monday, December 5, 2011 at 1:12pm.

How many days did he run 5 miles?

How many days did he run 7 miles?

- Math -
**Reiny**, Monday, December 5, 2011 at 1:18pmnumber of days he ran 5 miles --- x

number of days he rans 7 miles --- 30-x

5x + 7(30-x) = 166

solve for x , then sub in the original definitions

- Math -
**KC**, Monday, December 5, 2011 at 1:28pmThank you so much !!!!

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