SOLUTION: A chemist has two alloys, one of which is 10% gold and 25% lead and the other which is 40% gold and 50% lead. How many grams of each of the two alloys should be used to make an all

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Question 1106363: A chemist has two alloys, one of which is 10% gold and 25% lead and the other which is 40% gold and 50% lead. How many grams of each of the two alloys should be used to make an alloy that contains 67 g of gold and 142.5 g of lead?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
x of the first alloy
y of the second alloy

WANT 67 grams gold and 142.5 grams lead

system%280.1x%2B0.4y=67%2C0.25x%2B0.5y=142.5%29
Simplify and solve.