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August 21, 2014

August 21, 2014

Posted by **sahar** on Thursday, November 8, 2012 at 9:30pm.

- math -
**Reiny**, Thursday, November 8, 2012 at 11:10pmamount of 5% solution used --- x

amount of 8% solution used --- 60-x

.05x + .08(60-x) = .07(60)

times 100

5x +8(60-x) = 420

5x + 480 - 8x = 420

-3x = -60

x = 20

20 ounces of the 5% solution and 40 ounces of the 8% solution.

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