SOLUTION: How much of an alloy that is 20% copper should be mixed with 400 ounces of an alloy that is 80% copper in order to get an alloy that is 40% copper?
Algebra.Com
Question 1053237: How much of an alloy that is 20% copper should be mixed with 400 ounces of an alloy that is 80% copper in order to get an alloy that is 40% copper?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Set Up
.20x + .80(400oz) = .40(400oz+x)
.20x + .80(400oz) = .40(400oz) + .40x
.40(400oz)/.20 = x
RELATED QUESTIONS
How much of an alloy that is 20% copper should be mixed with 400 ounces of an alloy that... (answered by addingup,adamhen894)
How much of an alloy that is 20% copper should be mixed with 400 ounces of an alloy that (answered by ankor@dixie-net.com)
how much of an alloy that is 10% copper should be mixed with 400 ounces of an alloy that... (answered by jorel1380)
how much of an alloy that is 20% copper should be mixed with 400 ounces of an alloy that... (answered by lwsshak3)
How much of an alloy that is 10% copper should be mixed with 400 ounces of an alloy that... (answered by josgarithmetic,ikleyn,greenestamps)
Please help me solve this: How much of an alloy that is 10% copper should be mixed with... (answered by richwmiller)
How much of an alloy that is 20% copper should be mixed with 300 ounces of an alloy that... (answered by jorel1380,greenestamps)
How much of an alloy that is 30% copper should be mixed with 400 ounces of an alloy that... (answered by richwmiller,Alan3354)
how much of an alloy that is 30% copper should be mixed with 100 ounces of an alloy that... (answered by lwsshak3)