An athlete is logging practice time for 3 weeks. If the athlete practices 523hours the first week, 456hours the second week, and 457hours the third week, what is the average weekly practice time? Write the solution as a mixed number or a fraction in lowest terms.

The average weekly time is 478.666 repeating.

512hrs

Step-by-step explanation:

If the athlete practices for three weeks;

523hrs the first week

556hrs the second week and

457hrs the third week.

The average weekly practise time = (523+556+457) hrs / 3

= 1536hrs/3

= 512 hrs

So the athlete averages 512hrs of practice every week