Question

7.Almost" latest release DVDs and Video Games are on special at RetraVision. Todd buys two Games and three DVDs at a total cost of $148.85. His more extravagant friend buys three Games and 5 DVDs for a total of $230.75. Determine the sale price of each DVD and Video Game

Answer 1

let video game be x

let DVDs be y

2x+3y=148.85

3x +5y=230.75

make x the subject of the formula

x=148.85-3y/2

3(148.85-3y/2)+5y =230.75

446.55-3y/2=230.75

461.5=446.55-3y

461.5-446.55 =-3y

-3y = 14.95

y=-4.987

x=