Question

Jerry started doing sit-ups everyday. The first day he did 15 sit-ups. Every day he did 2more sit-ups than he had done the previous day. Today Jerry did 33 sit-ups. Write an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day. Let n represent the number of days. An equation that can help Jerry to find the number of days he has been doing sit-ups is given by...

Please help! Thanks!

Answer 1

Answer: So if he did 15 and ended in 33 thats

15, 1

17, 2

19, 3

21, 4

23, 5

25, 6

27, 7

29, 8

31, 9

33, 10

2x + 15 = 33

and in that equation:

x = (9 or 10)

Explanation: