+0  
 
0
106
2
avatar

How many numbers are in the list -36, -29, -22, ..., 41, 48, ..., 104, 111?

 Jul 1, 2022
 #1
avatar+124676 
+1

[ (111 - - 36) / 7 ]  +  1  =

 

[(147) / 7  ]+  1 = 

 

21  +  1  =

 

22

 

cool cool cool

 Jul 1, 2022
 #2
avatar+1155 
+10

add 37 to all numbers to make first number 1.

 

1, 8, 15, -------- 147. Pattern is adding 7 everytime. So, 147/7= 21. Remember, everytime you count a list, like {1,2,3,4,5,6,7,8,9}, you have to add 1. 9-1+1=9 numbers. So, 21+1=22, like CPhill (the pro) says.

 Jul 3, 2022

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