Erica purchased adult and youth tickets for a movie. She bought x adult tickets for $7 each and y youth tickets for $5. Write an expression that can be used to show the total cost, C, of all tickets.

C = 7x + 5y

C = (7 + 5)x

C = (7 + 5)(x + y)

C = 7y + 5x

Question

Erica purchased adult and youth tickets for a movie. She bought x adult tickets for $7 each and y youth tickets for $5. Write an expression that can be used to show the total cost, C, of all tickets. 

 C = 7x + 5y 

 C = (7 + 5)x 

 C = (7 + 5)(x + y) 

 C = 7y + 5x

anonymous · Answer

Cost of 1 adult ticket = $7
Cost of say, 50 adult tickets =$7*50=$350
Thust cost of x adult tickets =$7*x=$7x

Similarly,
cost of y youth tickets=$5y
thus total cost=cost of x adult tickets + cost of y youth tickets
                    =7x+5y, in dollars.

anonymous · Answer

yeah that is pretty much what i got