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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?

Sagot :

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Answer:

$46.50

Step-by-step explanation:

20/4 =5

1/4 is already full so u only need 15 gallons

15 × $3.10 = $46.50

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[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.
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