[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
- You know that the gas tank in your car holds 20 gallons of gas and the gauge reads 1/4 full. The price of gasoline is $3.10 per gallon. How much will it cost to fill up the car?
[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
- Gallons the car can hold = 20
- Fraction of gallons that are present in the car = 1/4
- Fraction of gallons left to fill = 3/4 [4/4 - 1/4 = 3/4]
- Gallons left to fill = 15 [20 × 3/4 = 15]
- Cost per gallon of gasoline = $ 3.10
- Cost to fill up the car = ?
Now, let's solve it.
First we've to form an equation ... we know from the statements given above (in bulletin points) that ⇨ 3.10 × 15 = cost to fill up the car.
Let's use it to solve the question.
[tex] \sf3.10 \times 15 \\ = \boxed{ \boxed{\bf 46.5 \: dollars}}[/tex]
- So, you'll need about $ 46.5 to fill up the car.
