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September 21, 2014

September 21, 2014

Posted by **Amber** on Monday, January 14, 2008 at 10:57pm.

dealing w/- subst. and elimin.

- Algebra -
**Reiny**, Monday, January 14, 2008 at 11:30pmlet the speed of the plane in still air be x mph

let the speed of the wind by y mph

6(x+y) = 1092

8(x-y) = 1092

divide the first equation by 6, then second by 8, then add them

looks quite easy

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