Question

will medal+fan

An oil company fills 1 over 12 of a tank in 1 over 4 hour with gasoline. At this rate, which expression can be used to determine how long will it take for the tank to fill completely?
1 over 4 ⋅ 1 over 12
1 over 12 ⋅ 4
1 over 4 ⋅ 12
12 ⋅ 4

Answer 1

If it takes .25 hours to fill 1/12, then how long to fill up 12/12 of the tank. So we write...

Answer 2

(1/4) / (1/12) = (x)/(12/12)

Answer 3

ok

Answer 4

x is the amount of hours to fill the barrel given the ratio of the barrel filling up per unit time. So solve for x.

Answer 5

A

Answer 6

Show me how you got that.

Answer 7

I just thought if u multiply 1/4 times 1/12 u will get the answer

Answer 8

How can I rewrite this ?

Answer 9

put 1/4 ⋅1/12= x ???

Answer 10

When you divide by a fraction, you multiply by its reciprocal. For example