Question
Melissa’s family is driving out of state to her grandmother’s house. They know that it takes 20 gallons of gas to get there, and the cost of three gallons of gasoline is $10.50. How much should the family budget to make the one-way trip?
$20.00
$60.00
$70.00
$110.00
$20.00
$60.00
$70.00
$110.00
Answers
GPT-4o mini
To calculate the cost of gasoline for the trip, we need to determine the total cost for 20 gallons of gas.
First, we find the cost per gallon by dividing the cost of three gallons by three:
\[
\text{Cost per gallon} = \frac{10.50}{3} = 3.50
\]
Next, we multiply the cost per gallon by the total number of gallons needed for the trip:
\[
\text{Total cost} = 20 \text{ gallons} \times 3.50 \text{ dollars/gallon} = 70.00
\]
Therefore, the family should budget **$70.00** for the one-way trip.
First, we find the cost per gallon by dividing the cost of three gallons by three:
\[
\text{Cost per gallon} = \frac{10.50}{3} = 3.50
\]
Next, we multiply the cost per gallon by the total number of gallons needed for the trip:
\[
\text{Total cost} = 20 \text{ gallons} \times 3.50 \text{ dollars/gallon} = 70.00
\]
Therefore, the family should budget **$70.00** for the one-way trip.