Answer:
70p per week
Step-by-step explanation:
Power * time = energy
1 kw * 1 hour = 1 kwh per day
For 7 days,
Energy used = 1 kwH/day * 7 days = 7kwh
Total cost per week = 7 kwh * 10p
= 70p
5.2m questions
6.7m answers