The school that Darryl goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 9 ad
ult tickets and 6 student tickets for a total of $165. The school took in $105 on the second day by selling 3 adult tickets and 12 student tickets. What is the price each of one adult ticket and one student ticket? Solve by elimination.
1 answer:
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For f (r) = 154:
Clearing r we have:
For f (r) = 616:
Clearing r we have:
Answer:
a reasonable domain for f (r) is:
7 <r <14