Question

A car travels 83 7/10 miles on 2 1/4 gallons of fuel which is the best estimate of miles the car travels on one gallon of fuel

Answer 1

To solve this problem we can use proportion, but first its nice to transform our fraction into improper fraction, so

`83 (7)/(10)= (837)/(10)`
and

`2 (1)/(4)= (9)/(4)`
Now we can make proportion


`(837)/(10)`--------------------------
`(9)/(4)` of fuel
x-----------------------------
`1`
Now we can cross multiply


`x= ( (837)/(10) )/( (9)/(4) )= (837)/(10)* (4)/(9) = (3348)/(90)=37.2` - its the result