First, we need to multiply the total number of school days (21) by the miles Rosalie bikes on a school day (5). Then,
[tex]21\cdot5=105[/tex]105 miles are biked in 21 days.
Similarly, we need to multiply the total number of Saturdays (4) by the miles she bikes on a Saturday (15). Then
[tex]4\cdot15=60[/tex]Finally, we need to add the two previous results to get the answer
[tex]105+60=165[/tex]Therefore, the answer is 165 miles
You need to select:
1. Find the total number of miles biked on school days
2. Find the total number of miles biked on Saturdays
3. Find the sum of the total number of miles biked on Saturdays and the total miles biked on school days
Those are the answers and, actually, the steps we used to reach the final result