Answer :
Let's solve each question step by step:
Ann's Piano Practice
Ann practices for 20 minutes every day. Since there are 7 days in a week, the total weekly practice time is:
[tex]20 \text{ minutes/day} \times 7 \text{ days} = 140 \text{ minutes}[/tex]
To convert this into hours and minutes, note that 60 minutes is equal to 1 hour. So,
[tex]140 \div 60 = 2 \text{ hours} \quad \text{with a remainder of} \quad 20 \text{ minutes}[/tex]
Therefore, Ann practices a total of 140 minutes, which is the same as 2 hours and 20 minutes.
Starla's Gymnastics Practice
Starla practices 3 times a week for 45 minutes each time. Therefore, her total practice time is:
[tex]3 \times 45 = 135 \text{ minutes}[/tex]
Converting to hours:
[tex]135 \div 60 = 2 \text{ hours} \quad \text{with a remainder of} \quad 15 \text{ minutes}[/tex]
Starla practices for 135 minutes, which is the same as 2 hours and 15 minutes.
Nick's Tennis Practice
Nick practices 4 times a week, each session lasting 90 minutes. Thus his total practice time is:
[tex]4 \times 90 = 360 \text{ minutes}[/tex]
Converting to hours:
[tex]360 \div 60 = 6 \text{ hours}[/tex]
Nick practices for 360 minutes, which is exactly 6 hours.
Liz's Singing Practice
Liz practices twice a week for 50 minutes each time. So, her total practice time is:
[tex]2 \times 50 = 100 \text{ minutes}[/tex]
Converting to hours:
[tex]100 \div 60 = 1 \text{ hour} \quad \text{with a remainder of} \quad 40 \text{ minutes}[/tex]
Liz practices for 100 minutes, which is the same as 1 hour and 40 minutes.
Max's Guitar Practice
Max practices 4 times a week for 20 minutes each session. This means he practices for:
[tex]4 \times 20 = 80 \text{ minutes}[/tex]
Converting to hours:
[tex]80 \div 60 = 1 \text{ hour} \quad \text{with a remainder of} \quad 20 \text{ minutes}[/tex]
Max practices for 80 minutes, which is the same as 1 hour and 20 minutes.
Harry's Weight Lifting
Harry lifts weights 4 times each week for 30 minutes per session. His total weekly function time is:
[tex]4 \times 30 = 120 \text{ minutes}[/tex]
Converting to hours:
[tex]120 \div 60 = 2 \text{ hours}[/tex]
Harry lifts weights for 120 minutes, which is exactly 2 hours.