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April 16, 2014

Posted by **Helo** on Saturday, October 22, 2011 at 11:45am.

- math70 -
**Reiny**, Saturday, October 22, 2011 at 11:52amfirst distance --- x miles

distance by helicopter -- 156-x

x/30 + (156-x)/75 = 3

times 150

5x + 2(156-x) = 450

5x + 312 - 2x = 450

3x = 138

x = 46

distance from airport to office = 156-46 = 110

check:

46/30 + 110/75 = 3

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