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Mathematics, 20.07.2022 23:20 zekrader18
a chemical company makes two brands of antifreeze the first brand is 20% pure antifreeze and the second brand is 45% pure antifreeze in order to obtain 70 gallons of the mixture that contains 30% antifreeze how many gallons of each brand of antifreeze must be used
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a chemical company makes two brands of antifreeze the first brand is 20% pure antifreeze and the sec...
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