Question

Peter wants to use 75-watt light bulbs and other electronics in his tree house. He has one outlet with a maximum of 900 watts. Which expression represents how much wattage remains if n is the number of light bulbs turned on?

900(75n)
825 – n
900 – 75n
900/n

Answer 1

It should be 900 - 75n

900 is the initial and you’re finding how much remains so there should be some subtraction required

In addition, n is # light bulbs and 75 is watt per light bulb

U subtract 75watts per bulb from the initial of 900 watts to find the remaining wattage.

Answer 2

Answer:
`900 - 75n`

Explanation:

Given : Peter wants to use 75-watt light bulbs and other electronics in his tree house.

let n represents the number of light bulbs turned on.

Total wattage = 75n

He has one outlet with a maximum of 900 watts.

Then, the wattage remains after 'n' number of light bulbs turned on :-

`900 - 75n`

Hence, the correct expression =
`900 - 75n`