Solve the following problem: Rosalie exercises for 2/5 of an hour every morning. How much time does she spend exercising in a week? Convert the answer to a mixed number.
To find the time Rosalie spends exercising in a week, we need to multiply the amount of time she exercises each morning by the number of mornings in a week.
Rosalie exercises for 2/5 of an hour every morning.
There are 7 days in a week, so she exercises for 2/5 * 7 = 14/5 hours in a week.
To convert this improper fraction to a mixed number, we divide the numerator (14) by the denominator (5).
14 รท 5 = 2 remainder 4
Therefore, Rosalie spends 2 4/5 hours exercising in a week.