Question

Matthew currently has enough money to buy 45 toy cars. If the cost of each car was 10 cents less, Matthew could buy 5 more cars. How much money does Matthew have to spend on toy cars?

Answer 1

 x=price per toy car 
45x = money Matt has 
45x =50(x-.1) 
45x =50x -5 
5 =5x 
x=$1 
45x= $45
the cost of each car is $1