Let : x = student ticket and y = adult ticket
1) total 120 tickets means that ..... (related to x and y)
2) total money $670 means that....(related to x and y, if you sold x @ $5 and y @ $7 )
At the school play on Friday night, 120 tickets were sold. Student tickets cost $5 each and Adult tickets cost $7 each. The total sales for the evening were $670. How many of each type of ticket were sold?
How would I write a system of equations that represent this problem?