Jerry started doing sit-ups everyday. The first day he did 14 sit-ups. Everyday after that he did 4 more sit-ups than he had done the previous day. Today jerry did 22 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 .

2 days

Step-by-step explanation:

The first day Jerry did 14 sit-ups, so the first term of arithmetic sequence is

Everyday after that he did 4 more sit-ups than he had done the previous day, then the common differentce is

Today Jerry did 22 sit-ups, hence

Use formula for nth term of arithmetic sequence:

So

If not counting the first day, Jerry needs 2 days

the first one

step-by-step explanation:

just id the test.

about 0.75 hours

step-by-step explanation: