Anita is practicing so that she can join the swim team. The first time she timed her lap it was 1 minute and 12 seconds. After one week of practice, her best lap was 1 minute and 9 seconds. After a second week of practice, her best lap was 1 minute and 6 seconds. Use inductive reasoning to predict how long her best lap will be after three weeks of practice.
A.1 minute and 3 seconds
B.1 minute and 9 seconds
C.1 minute and 6 seconds
D.1 minute and 5 seconds

Question

Anita is practicing so that she can join the swim team. The first time she timed her lap it was 1 minute and 12 seconds. After one week of practice, her best lap was 1 minute and 9 seconds. After a second week of practice, her best lap was 1 minute and 6 seconds. Use inductive reasoning to predict how long her best lap will be after three weeks of practice.
A.1 minute and 3 seconds
B.1 minute and 9 seconds
C.1 minute and 6 seconds
D.1 minute and 5 seconds

anonymous · Answer

2. Her time is dropping by 3 seconds each week, so after 3 weeks, her time should be about 1 minute and 3 seconds. (However, at some point she will reach a plateau, and her gain in speed will drop to zero.)