Question

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2. Katie practiced the flute for 45 minutes. Then she ate a snack for 15 minutes. Next, she watched television for 30 minutes, until 6:00 P.M. At what time did Katie start practicing the flute?

1. Gloria went to the mall and spent 50 minutes shopping. Then she had lunch for 30 minutes. If Gloria arrived at the mall at 11:00 A.M., at what time did she finish lunch?

2. The ball game begins at 2:00 P.M. It takes Ying 30 minutes to get to the ballpark. At what time should Ying leave home to get to the game 30 minutes before it starts?

Answer 1

Katie started practicing flute at 4:30 PM
she practiced for 45 minutes
4:30
+:45
_____
5:15
so she started eating her snack at 5:15PM she ate the snack during 15 minutes
5:15
+:15
____
5:30
and finally she starting watching tv at 5:30 PM during 30 minutes
5:30
+:30
_____
6:00

Second question

she finished lunch at 0:20 PM
so she spended 50 minutes shoping and 30 minutes eating lunch, so in all of that she spended (50 + 30 = 80) 80 minutes

80 minutes = 1 hour twenty minutes
11:00
+1:20
______
12:20
since 12:20 AM doesn´t exist we say it´s 0:20 PM

third question

he should leave at 1:00 PM

the game starts at 2:00 PM so if he wants to be there 30 minutes before he´ll have to be there at 1:30PM

 2:00
+ :30
_____
1:30
so from home to the game he takes 30 minutes

1:30
+:30
_____
1:00

i hope i helped you