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IRISSAK [1]
4 years ago
14

One alloy is 2 parts iron to 3 parts silver and another alloy is 7 parts iron to 3 parts silver. How much of each should be comb

ined to produce a 30 pound alloy that is 1 part iron to 1 part silver?
Mathematics
1 answer:
Shalnov [3]4 years ago
8 0
Let x be your first alloy
2/5x+7/10(30-x)=1/2(30)
4x+210-7x=150
3x=60
x=20
So, you need 20 lbs of the first alloy, and 10 parts of the second to make 30 lbs of half iron and half silver alloy!
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