Mathematics, 25.01.2022 14:00 wingleo1112
A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure antifreeze. In order to obtain 150 gallons of a mixture that contains 70% pure antifreeze, how many gallons of each brand of antifreeze must be used?
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Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours
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What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9
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