Apower plant has 4 tons of coal. a ton produces 2,460 kilowatt hours of electricity. is this enough to power 9 light bulbs for a year? explain. it takes 876 kilowatt hours of electricity to power a 100-watt light bulb for a year.

Since the required energy is less than the produced energy, the power is sufficient to light 9 light bulbs.

Step-by-step explanation:

A power plant has 4 tons of coal. A ton produces 2,460 kilowatt hours of electricity.

It takes 876 kilowatt hours of electricity to power a 100-watt light bulb for a year.

We have to light 9 bulbs a year.

So the required energy = 9 876 = 7884 kilowatt hours.

Power plant produces 4 tons of coal, so power = 4

                                                                               = 9840 kilowatt hours.

Since the required energy is less than the produced energy, the power is sufficient to light 9 light bulbs.