68. A solvent manufacturing company is producing toluene, and stocking it in two different vars with
10,000 gallons of capacity each. Vat A currently con-
cains 450 gallons of toluene, and its contents are
increasing at a rate of 40 gallons per minute. Vat B
currently contains 1,250 gallons of toluene, and its
contents are increasing at a rate of 15 gallons per min-
ute. In how many minutes will the two vats contain
equal amounts of toluene?

mr. graef told us it is 13 pints

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

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