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Mathematics, 09.11.2019 03:31, aaliyahnv07
How many gallons of a 90% antifreeze solution must be mixed with 90 gallons of 20% antifreeze to get a mixture that is 80% antifreeze?
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How many gallons of a 90% antifreeze solution must be mixed with 90 gallons of 20% antifreeze to get...
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