Mathematics, 26.08.2020 22:01 Jenniferwolf
I chemical company makes two brands of anti-freeze the first brand is 60% pure anti-freeze the second brain is 85% pure anti-freeze in order to obtain 120 gallons of a mixture that contains 65% pure anti-freeze how many gallons of each brand of antifreeze must be used
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I chemical company makes two brands of anti-freeze the first brand is 60% pure anti-freeze the secon...
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