Question

Jessica electricity bill costs $32.44 per month plus $1.34 per kilowatt hour. how many kilowatt hours can she use and keep her bill to no more than $87? enter as a whole number

Answer 1

Jessica can use no more than 40 kilowatt hours.

To check this, we're going to start by subtracting the bill from 87 dollars.
$87 - 32.44$
This equals 54.56 dollars.

You then solve how many hours she can use by dividing.
$32.44 \div 1.34$
You get a really big answer like 40.7164... since it needs to be a whole number and not a fraction of a number, round down.