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Sheet # 489 Daily Warmups

 Name_________________________Date:_____________

Heidi has begun to work out regularly. She does exercises such as sit-ups, pushups, leg lifts, and jumping jacks. If she stays with her plan, she hopes to do a few more of each kind of exercise at every workout. Heidi has been keeping track of her exercises. This is one of her charts.

Day
1
2
3
4
5
6
Sit-ups
15
18
21
24
?
?

a) If Heidi keeps increasing her number of sit-ups as shown in the chart, how many sit-ups will she do on Day 5? How many on Day 6? Explain how you figured this out.






b) If Heidi keeps increasing her sit-ups at this rate, on which day will she do 35 sit-ups?






c) If Heidi keeps increasing her sit-ups at this rate, will she ever do exactly 50 sit-ups in one day? Explain how you figured this out.




d) At this rate, how many sit-ups will Jessie do on Day 21?
































































Answers for sheet # 489

a) 27 and 30. Add 3

b) 8th day

c) No

d) 75