Question
Albert walks 4/5 of a mile in 5/12 of an hour. Which expression can be used to calculate his unit rate in miles per hour?
4/5 - 5/12
5/12 ยท 4/5
5 / 12 / 4 / 5
4 / 5 / 5 / 12
4/5 - 5/12
5/12 ยท 4/5
5 / 12 / 4 / 5
4 / 5 / 5 / 12
Answers
GPT-4o mini
To find Albert's unit rate in miles per hour, we need to divide the distance he walked by the time it took. The correct expression to calculate the unit rate in miles per hour would be:
\[
\frac{4/5}{5/12}
\]
This can also be written as:
\[
4/5 \div 5/12
\]
Thus, the expression that can be used to calculate his unit rate in miles per hour is:
\[
\frac{4}{5} \div \frac{5}{12}
\]
Therefore, from the options provided, the correct choice is:
**4 / 5 / 5 / 12** (interpreted as \(\frac{4}{5} \div \frac{5}{12}\))
\[
\frac{4/5}{5/12}
\]
This can also be written as:
\[
4/5 \div 5/12
\]
Thus, the expression that can be used to calculate his unit rate in miles per hour is:
\[
\frac{4}{5} \div \frac{5}{12}
\]
Therefore, from the options provided, the correct choice is:
**4 / 5 / 5 / 12** (interpreted as \(\frac{4}{5} \div \frac{5}{12}\))