Mathematics, 26.07.2021 02:40 arianaw6735

a chemical company makes two brands of antifreeze. the first brand is 45% pure antifreeze, and the second brand is 65% pure antifreeze. In order to obtain 120 gallons of mixture that contains 60% pure antifreeze, how many gallons of each must be used

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a chemical company makes two brands of antifreeze. the first brand is 45% pure antifreeze, and the s...