Answer:
s= 25/12 or 2.0833333
Step-by-step explanation:
explanation in pictures
You wrote the equation wrong- he starts with 9 pencils so that's a constant and he sharpens 11 pencils for every minute. The equation would be 9+11x with x being the amount of minutes, which in this case is 7. So you just substitute and solve.
9+11x
9+11(7)
9+77
86
Hope this helps!
The common difference is 11, you can see this because the number goes up by eleven each time.
Answer:
24
Step-by-step explanation:
39-5= 34, 34-5= 29, 29-5= 24