Mathematics, 30.04.2021 02:50 billycain9647
On her way home from work, Sandra fills up her car. She likes the idea of using gasoline with ethanol, but thinks her car can only handle 30% ethanol. At the gas station, she can use regular gas with 10% ethanol or E70 fuel with 70% ethanol. How many gallons of each type of fuel should Sandra use if she wants to fill up her car with 9 gallons of fuel containing 30% ethanol?
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On her way home from work, Sandra fills up her car. She likes the idea of using gasoline with ethano...
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