SaraRiley SaraRiley
  • 15-01-2016
  • Mathematics
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taskmasters
taskmasters taskmasters
  • 15-01-2016
3 hours of babysitting will earn them the same amount of money.

Josh  = 8h + 9
Scott = 6h + 15

Number of hours of babysitting at which Scott and Josh will earn the same amount of money.

8h + 9 = 6h + 15
8h - 6h = 15 - 9
2h = 6
2h/2 = 6/2
h = 3 

To check:
Josh = 8h + 9   = 8(3) +  9  =  24 + 9 = 33
Scott= 6h + 15 = 6(3) + 15 = 18 + 15 = 33
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