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January 31, 2015

January 31, 2015

Posted by **Katie** on Thursday, November 4, 2010 at 3:50pm.

Jim drove the 120 miles to grandmothers house in 3 hours. He increased the speed by 10 miles per hour on the way home. How long did it take him to drive home?

- pre-algerbra -
**bobpursley**, Thursday, November 4, 2010 at 4:00pmvelocity on the way: 120/3 mph

veloicyt on the way back: 120/3 + 10

time to get back: distance/velocity

= 120/(50)=12/5=2 2/5 hrs

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