Asked by math problem

There were 369 tickets purchased for a major league baseball game. the lower reserved tickets cost $9.50 and the upper box tickets costs $10.00. The total amount of money spent was $3645. How many each kind of ticket were purchased?
Answered by Scott
r + b = 365 ... 10 r + 10 b = 3650

9.5 r + 10 b = 3645

subtracting equations
... .5 r = 5