Question

The gas gauge in a car shows it has 40% of a tank of gas. If the car has about 5 gallons, approximately how many gallons can the tank hold when it is full?

Answer 1

B

Explanation:

Answer 2

the tank can hold 12.5 gallons when it is full

Explanation:

Let's assume

tank can hold 'x' gallons when it is full

we are given

The gas gauge in a car shows it has 40% of a tank of gas

So, gas in car is

`=(40)/(100)* x`

and we have

the car has about 5 gallons

so, we can set it equal

and then we can solve for x

`5=(40)/(100)* x`

`5=(4)/(10)* x`

`5=(2)/(5)* x`

Multiply both sides 5

`5* 5=5* (2)/(5)* x`

`5* 5=2x`

`25=2x`

we get

`x=12.5`

So, the tank can hold 12.5 gallons when it is full