SOLUTION: Lina set her watch 1 second behind, and it falls behind another 2 seconds every day. How many days has it been since Lina last set her watch if the watch is 9 seconds behind? Write

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Lina set her watch 1 second behind, and it falls behind another 2 seconds every day. How many days has it been since Lina last set her watch if the watch is 9 seconds behind? Write      Log On


   

Question 1110571: Lina set her watch 1 second behind, and it falls behind another 2 seconds every day. How many days has it been since Lina last set her watch if the watch is 9 seconds behind? Write and solve an equation to find the answer.
Answer by ikleyn(52864) About Me  (Show Source):
You can put this solution on YOUR website!
.
1 + 2n = 9,


2n = 9 - 1,


2n = 8,


n = 8%2F2 = 4.


Answer.  4 days ago.