Question

The expression 12g gives the number of kilometers a car can travel using g liters of gasoline. How far can this car travel on 5 1/2 liters of gasoline?

Answer 1

Substitute in 5 1/2 for g in the expression : 12g=12(5 1/2)=66

So, this car can go 66 kilometers on 5 1/2 liters of gasoline.

Answer 2

66 km

Explanation:

Given that

Number of km's traveled by a car using g liters of gasoline = 12g

Number of gallons of gas required to travel 12g kilometers = g

We have to find

How far this car can travel using
`5 (1)/(2)` or 5.5 liters of gasoline = x= ?

Now we can find this by substituting g=
`5 (1)/(2)` in the the above equation representing number of kilometers traveled by the car.

Number of km's traveled by a car using
`5 (1)/(2)` liters of gasoline = 12 (
`5 (1)/(2)`)

x = 12 (5.5)

x= 66 km

So, the car travels 66km in 5.5 liters of gasoline