Rolf spent 15 hours last week practicing his saxophone. If #3/10# of the time was spent practicing warm-up routines, how much time did he spend practicing warm-up routines?
1 Answer
Mar 6, 2018
The answer is 4.5 hours (or 4 hours and 30 minutes).
Explanation:
If Rolf spent 3/10 of his time practicing warm-up routines, this means he spent 30% of his time on warm-up. So, the question becomes, what is 30% of 15 hours?
This can be calculated as: