Question

Billy has a gift card with a $150 balance. He buys several video games that cost $ 15 each. After the purchases, his gift card balance is $45. Write an equation to help find out how many video games Billy bought. How many games he bought

Answer 1

v = (b - n)/p

if v = # of games; b = original balance; n = new balance; p = price per game

v = 7; billy bought 7 games

Explanation:

v = (150 - 45)/15 = 105/15= 7

Answer 2

(Gift card's original Balance - Balance after purchases) Answer / cost of game

(150 - 45) = 105. 105/15 = 7

He bought 7 games

Explanation:

You do the 150 - the 45 to see how much he had spent.

Divide by the cost and it shows how much he bought