Answer:
It takes more energy to reheat coffee in the microwave
Explanation:
1 cup= 30 seconds
12 cups= 30*12= 360 seconds
360/60= 6 minutes
It takes 6 minutes to reheat 12 cups of coffee.
900 watts/10 minutes= 90 watts per minute
1200 watts/6 minutes= 200 watts per minute
Answer:
The coffee-maker requires more energy.
Explanation:
Explanation: At 30 seconds a cup, the microwave will require 6 minutes to reheat the 12 cups of coffee. This is 1/10 of an hour, so the microwave uses 1200/10 = 120 watt-hours of energy. The coffee-maker requires 10 minutes to brew 12 cups of coffee, or 1/6 of an hour. This means it will use 900/6 = 150 watt-hours of energy.
