Question

Which is a unit rate?
15 miles per gallon
5 pounds in 2 bags
$8 for 3 boxes of crackers
22 gallons in 5 days

Answers

GPT-4o mini
A unit rate expresses a quantity in relation to one unit of another quantity.

Let's analyze the options you provided:

1. **15 miles per gallon**: This is a unit rate because it tells you how many miles are traveled for one gallon of fuel.

2. **5 pounds in 2 bags**: This does not represent a unit rate since it does not express a single quantity per one unit (it would need to express pounds per one bag).

3. **$8 for 3 boxes of crackers**: This also does not represent a unit rate on its own, but you could calculate the unit price, which would be approximately $2.67 per box.

4. **22 gallons in 5 days**: This could be converted to a unit rate by calculating how many gallons per day, which would be 4.4 gallons per day.

Based on the definitions, the first option, **15 miles per gallon**, is the straightforward unit rate.