Agustin can hold his breath for 90 seconds at a time. He did this 5 times this week. He used fractions and multiplication to calculate how many minutes he held his breath this week in total.
90 seconds is equivalent to?
The mixed number above multiply by 5 is??
90 seconds is equivalent to 1 1/2 minutes. (Since 1 minute = 60 seconds)
1 1/2 minutes x 5 = 7 1/2 minutes
Therefore, Agustin held his breath for a total of 7 1/2 minutes this week.