Question

Jill rides a train for 2/3 of an hour and goes 38 miles. How many miles per hour is her train going? Select all correct answers.

Answer 1

First convert the distance she ran from a mixed number to a improper fraction:

2-3/4 equals 11/4.

Since this a unit rate problem divide the miles by the time traveled.

11/4 (miles) ÷ 1/3 (hour). When you divide a number by a fraction use (Keep-Change-Flip).

11/4 × 3/1 = 33/4 miles/hour.

Convert improper fraction to mixed number by dividing 33 by 4.

33/4 = 8-1/4 miles/ hour.

Explanation: