Question

Which of the following is the most appropriate unit to describe the rate of the cost of gasoline?

Dollars per gallon, because the dependent quantity is the gallons

Dollars per gallon, because the dependent quantity is the dollars

Gallons per dollar, because the dependent quantity is the gallons

Gallons per dollar, because the dependent quantity is the dollars

Answer 1

the cost of your gasoline depends on how many gallons you purchase...

and when you go to the gas station the cost is shown as $ per gallon.

hope this helps.

Answer 2

so it's gallons per dollar, because the dependent quantity is the dollars ?

Answer 3

isn't it $ paid = price per gallon * gallons...

So dollar per gallon, and dollar is dependent...