Question

Antonio's dad bought gas for their family's ATV two weeks in a row. Last week, he bought 12 gallons for $35.40. This week, he bought 9 gallons for $25.83. How much more did Antonio's dad pay per gallon last week?

Answer 1

To find out how much more Antonio's dad paid per gallon last week compared to this week, we first need to calculate the price per gallon for both weeks.

**Last week:**
- Total gallons = 12 gallons
- Total cost = $35.40

Price per gallon last week:
\[
\text{Price per gallon last week} = \frac{35.40}{12} = 2.95
\]

**This week:**
- Total gallons = 9 gallons
- Total cost = $25.83

Price per gallon this week:
\[
\text{Price per gallon this week} = \frac{25.83}{9} = 2.87
\]

**Now, we find the difference in price per gallon:**
\[
\text{Difference} = \text{Price per gallon last week} - \text{Price per gallon this week}
\]
\[
\text{Difference} = 2.95 - 2.87 = 0.08
\]

Antonio's dad paid $0.08 more per gallon last week than this week.