Question

Which system of equations can be used to solve the following problem?

Each child ticket for a ride costs $3, while each adult ticket costs $5. If the ride collected a total of $150, and 40 tickets were sold, how many of each type of ticket were sold? Let c be the number of child tickets and a be the number of adult tickets.

Answer 1

from your data we can write:
c+a=40
furthermore, if one child ticket costs 3$, then c child tickets cost 3*c$
and if one a thicket costs 5$, then a tickets cost 5*a$, so their sum has to be equal to 150$, namely
3c+5a=150

Answer 2

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