find the unit rate
400 miles in 5 hours
400 / 5 = ?
80
80
To find the unit rate, divide the given quantity (in this case, 400 miles) by the corresponding quantity (in this case, 5 hours).
Unit Rate = Quantity / Corresponding quantity
Unit Rate = 400 miles / 5 hours
Simplify the division:
Unit Rate = 80 miles per hour
Therefore, the unit rate is 80 miles per hour.