Solve the problem.Tickets to a ballet cost $15 if bought in advance. If bought at the door, they cost $24. For the ballet to make a profit, the total money collected from ticket sales must be at least $390. (a) Write an inequality to represent this situation, using x for the number of tickets bought in advance and y for the number of tickets bought at the door. (b) Graph the inequality. Because x and y must be whole numbers, restrict the graph to Quadrant I. (c) Can the ballet make a profit if it sells 30 tickets in advance and 10 tickets at the door?
A. (a) 15x - 24y ? 390
(b)
(c) yes
B. (a) 15x + 24y ? 390
(b)
(c) yes
C. (a) 15x + 24y ? 390
(b)
(c) no
D. (a) 15x - 24y ? 390
(b)
(c) no
Answer: B
Mathematics
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