SOLUTION: A teacher buys 50 train tickets for a school trip at a total cost of $1,200. She buys x number of children tickets for $20 each. She also buys y number of adult tickets for $30 eac

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A teacher buys 50 train tickets for a school trip at a total cost of $1,200. She buys x number of children tickets for $20 each. She also buys y number of adult tickets for $30 eac      Log On


   

Question 977585: A teacher buys 50 train tickets for a school trip at a total cost of $1,200. She buys x number of children tickets for $20 each. She also buys y number of adult tickets for $30 each.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x=children
y=adults
20x+30y=1200;; money equation
x+y=50 ;;number equation
20x+20y=1000
-20x-20y=-1000
20x +30y=1200
10y=200
y=20 adults
x=30 children
20*30=$600 for adults
30*20=$600 for children