Question

Jerry started doing sit-ups every day. On the first day, he did 11 sit-ups. Every day after that he did 4 more sit-ups than he had done the previous day. Today Jerry did 49 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 ___ + ___ = ___.

Answer 1

Answer:

11x + 4x = 49

Step-by-step explanation:

11x represents the number of sit-ups done times the number of days and +4x represents 4 more each day times the number of days. Hope this helps you :)