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
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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) (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
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