exam
Maths Puzzle
Numerical Ability
To form a 10% copper alloy weighing 75 grams, a 6% copper alloy is combined with an 18% copper alloy. How much of each type should be used?
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exam Other Question
A dealer wishes to produces 300 gallons of oil worth $0.40/quart. He has oil worth $0.36/quart and oil worth $0.52/quart. How many quarts each should he mix?
____qts of $0.36
hi, i need some help solving this problem..
3x-5y=1
10y=6x-1
if possible express the answer in ordered pairs. Thanks!