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?
To calculate his unit rate in miles per hour, we can use the expression:
(4/5 miles) / (5/12 hours)
This can be simplified by multiplying the numerator by the reciprocal of the denominator:
(4/5) * (12/5)
= 48 / 25
Therefore, Albert's unit rate in miles per hour is 48/25 mph.