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Uptown Tickets charges $7 per baseball game tickets plus a $3 process fee per order. Is the cost of an order proportional to the number of tickets ordered?



Answer :

The cost of an order is proportional to the number of tickets if the relation between them is constant.

Then, if we order 1 ticket the cost will be $7 + $3 = $10

And if we order 2 tickets, the cost will be $7*2 + $3 = $17

So, the relation between cost and the number of tickets is:

For 1 ticket = $10 / 1 ticket = 10

For 2 tickets = $17/ 2 tickets = 8.5

Since 10 and 8.5 are different, the cost of an order is not proportional to the number of tickets ordered.

Answer: they are not proportional

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