Mathematics, 24.06.2019 21:30 nanakwameyeb
One tamk of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. to obtain a mixture of 60 gallons with an octane rating of 120, how many gallons should be used from the tank with the octane rating of 80?
Answers: 1
Mathematics, 21.06.2019 20:00
Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.
Answers: 1
One tamk of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating o...
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