SOLUTION: A metallurgist has one alloy containing 24% of aluminum and another containing 34% aluminum. How many pounds of each alloy must he use to make 55 pounds of a third alloy containing
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Question 991568: A metallurgist has one alloy containing 24% of aluminum and another containing 34% aluminum. How many pounds of each alloy must he use to make 55 pounds of a third alloy containing 31% aluminum?
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A large solar heating panel requires 110 gallons of a fluid that is 40% antifreeze. The fluid comes in either a 65% solution or a 20% solution. How many gallons of each should be used to prepare the 110-gallon solution?
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s = amount of 65%
t = amount of 20%
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s + t = 111 (total solution)
65s + 20t = 40*110 (total antifreeze)
