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

I think it's C.

Answer 2

@mathessentials

Answer 3

@DebbieG

Answer 4

The more money you pay the more gallons so gallons has to be dependent, correct?

Answer 5

"the dependent quantity is the gallons"

no, the dependent quantity - what is being calculated DEPENDENT on... your gasoline input - is cost

Answer 6

well usually you input gallons though and then the cost is calculated

you could do it the other way round, sure: "put gas for $20"
however the rate of gallons is how much does it cost for some gallons

Answer 7

in a rate the price depends on how much you buy

Answer 8

usually it is "$ per gallon" rather than "you can get xx gallon for 1$!!"

Answer 9

So the answer is B, or D?

Answer 10

yes

Answer 11

and only one of them is consistent, the other statement mixes "put gallon for $20" with "$ / gallon"

Answer 12

??

Answer 13

What do you mean "yes"? You can't have 2 answers . . .

Answer 14

you asked if it is B or D.

so final candidates are:
B) Dollars per gallon, because the dependent quantity is the dollars
D) Gallons per dollar, because the dependent quantity is the dollars

and I also claim only one of them is consistent

Answer 15

Oh

Answer 16

well if you say "per" than that indicates a dependence
for example "Gallons per Dollar" indicates that gallons depend on dollar

Answer 17

Ohhh, and you said that Dollars depend on Gallons, right?

Answer 18

exactly, that's how we do business :)

Answer 19

we let people pick what they need and then they check out and the price depends on what they bought

Answer 20

Oh, right. So the correct answer is B?

Answer 21

correct

Answer 22

B) is what you will find at any refuel station

Answer 23

Okay can you help with another?

Answer 24

yes

Answer 25

Kind of like it

Answer 26

Okay I'll close this and open another.

Answer 27

good