Posted by **chad** on Wednesday, October 20, 2010 at 4:10pm.

assume that a jeweler needs 80 grams of an alloy that is 30% gold. He has avaliable one alloy that is 5% gold and another that is 85% gold; he will mix some of each If x equal the number of grams of the first alloy (so the number of grams of the second is 80-x), find x

- algebra -
**Reiny**, Wednesday, October 20, 2010 at 6:10pm
solve

.05x + .85(80-x) = .3(80)

- GOLD DUST FOR SALE -
**BENSON IMO**, Tuesday, January 17, 2012 at 5:06am
GOLD DUST FOR SALE

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Best Regards

MR BENSON IMO

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