Question

There were 718 tickets purchased for a major league baseball game. The lower reserved tickets cost ​$9.50 and the upper reserved tickets cost ​$8.00. The total amount of money spent was ​$6249.50 How many of each kind of ticket were​ purchased?

Answer 1

Let
L=number of lower tickets sold
U=number of upper tickets sold

then
U=718-L...........(1)
and
9.50L + 8U=6249.50 ..........(2)
Substitute (1) in (2)
9.50L+8(718-L)=6249.50
isolate L and solve
1.5L=6249.50-8*718=505.5
L=505.5/1.5=337
U=718-L=381