Step-by-step explanation:
there are 730.001 hours in a month
A)730.001 - 22.6
=707.401hrs
22.6 +2.9
=25.5
B) 730.001- 25.5
=704.501hrs
Answer:
Computer: 9.85 hours
TV: 12.75 hours
Step-by-step explanation:
Computer : t hours
TV : (t + 2.9) hours
t + (t + 2.9) = 22.6
2t = 22.6 - 2.9
2t = 19.7
t = 9.85
t + 2.9 = 9.85