In November 2010 the average cost of 5 gallons of regular unleaded gasoline in the United States was $14.46. What was the average cost for 16 gallons of gasoline?

 

To find the average cost for 16 gallons of gasoline, we can use a simple proportion since the cost per gallon remains the same.

We know that:

- 5 gallons cost $14.46
- We need to find the cost for 16 gallons

First, determine the cost per gallon:

\[
\text{Cost per gallon} = \frac{14.46}{5} = 2.892 \, \text{dollars per gallon}
\]

Next, multiply this cost per gallon by 16 gallons:

\[
\text{Cost for 16 gallons} = 2.892 \times 16 = 46.272
\]

Thus, the average cost for 16 gallons of gasoline is **$46.27** (rounded to two decimal places).

Would you like further details on this, or do you have any questions?

Here are 5 related questions to deepen understanding:
1. How would the cost change if you bought 10 gallons instead of 16?
2. What would be the cost for 8 gallons of gasoline at this price per gallon?
3. If the price per gallon increased by 10%, what would be the new cost for 16 gallons?
4. How many gallons of gasoline could you buy for $30 at this price?
5. If gas costs $3 per gallon, how does this compare to the 2010 price?

**Tip:** When solving proportion problems, always determine the unit rate (cost per gallon) before scaling it up or down to different quantities.

In November 2010 the average cost of 5 gallons of regular unleaded gasoline in the United States was $14.46. What was the average cost for 16 gallons of gasoline?

Find the cost of 16 gallons of gasoline when the average cost for 5 gallons is $14.46. This problem demonstrates proportion and unit rate calculation. Suitable for Grades 6-8.

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