Asked by milly

three times as many children as adults attended a concert on saturday. an adult ticket cost $7 and a child ticket cost $3. the theater collected a total of $6000. how many people bought tickets?
Answered by Steve
a = 3c
7a+3c = 6000
8a = 6000
a = 750
so, c=?
Answered by milly
how did you get #8a, can you help me step by step please
Answered by Steve
oops. "three times as many children as adults " means c=3a

so, adding up the cost of the tickets, we have

7a+3c = 6000
7a+3(3a) = 6000
7a+9a = 6000
16a = 6000
a = 375
Answered by milly
its 5th grade math, what other way can i show it
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