SOLUTION: 1.a collection of 50 cents coins and $2 coins has a total value of $28.50. If there are 30 coins in the collection, how may coins of each kind are there in the collection? 2. th

Algebra ->  Systems-of-equations -> SOLUTION: 1.a collection of 50 cents coins and $2 coins has a total value of $28.50. If there are 30 coins in the collection, how may coins of each kind are there in the collection? 2. th      Log On


   



Question 823626: 1.a collection of 50 cents coins and $2 coins has a total value of $28.50. If there are 30 coins in the collection, how may coins of each kind are there in the collection?
2. the amount of money received in a game were $5250.00 for 830 tickets sold. If the adult paid $15 each and the student paid $5 each for admission, how many tickets of each kind were sold?

Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
x and y, for adults and students.

x+y=830 for the account of tickets.
15x+5y=5250 accounts for money. This equation divided by 5 gives 3x+y=1050.

Subtract the ticket count equation from the money account equation and first find the value for x.