Question

You can drive 420 miles on 20 gallons in 6 hours. How far can you drive on 1 gallon?

Answer 1

21

Explanation:

420=20

? =1

or
`(420)/(x)` =
`(20)/(1)`

you can then do cross multiplication and get

420=20x

you then divide both sides by 20

and get x=21

Answer 2

21 miles

Explanation: