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January 30, 2015

January 30, 2015

Posted by **John** on Thursday, November 15, 2012 at 2:03pm.

- Algebra II -
**Steve**, Thursday, November 15, 2012 at 3:50pmadd up the times

time = distance/speed

If his downhill speed is s,

8/s + 8/(s-3) = 4

s = 6

check:

8 miles @ 3mph = 8/3 hr

8 miles @ 6mph = 4/3 hr

total: 4 hr

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