Ava set her watch 2 seconds behind, every day it sets back 1 second. How many days has it been since

Discussion in 'Calculator Requests' started by math_celebrity, Nov 2, 2016.

Tags:
  1. math_celebrity

    math_celebrity Administrator Staff Member

    Ava set her watch 2 seconds behind, every day it sets back 1 second. How many days has it been since she last set her watch if it is 41 seconds behind?

    Right now: Watch is 2 seconds behind

    Let d be the day after right now
    (1)d + 2 = 41
    d + 2 = 41

    Subtract 2 from each side
    d = 39
     
    math_celebrity, Nov 2, 2016
    #1

Share This Page