James wants to buy a video game system that costs $310.00. His parents say James must raise 45% of the money himself. How much money must James raise?

1 Answer
Dec 5, 2016

James must raise $139.50.


To state this problem another way, James must raise 45% of $310.00.

Therefore we must find the amount that is 45% of $310.00.

Let's call this amount #j#.

"Percent" or "%" means "out of 100" or "per 100", Therefore 45% can be written as #45/100#.

When dealing with percents the word "of" means "times" or "to multiply".

Putting this altogether we can write this equation and solve for #j# while keeping the equation balanced:

#j = 45/100 xx $310.00#

#j = ($13950.00)/100#

#j = $139.50#