## NeonaW 4 years ago A ticket to the movies costs \$7. You have \$21. How many tickets can you buy?

1. LagrangeSon678

i dont know, maybe 3

2. LagrangeSon678

2 problably if you pay tax

3. giggles123

Exactly 3

4. Kira_Yamato

Assuming no other taxes and stuff, you can get 3 tickets... But that depends on the percentage of taxes...

5. giggles123

|dw:1315278179067:dw|

6. giggles123

The problem does not state the taxes where going to be charged!

7. LagrangeSon678

hey man there's always a tax to pay

8. Kira_Yamato

@LagrangeSon678 that is why I've stated the assumption of no tax, to make calculation easier.

9. LagrangeSon678

you got food tax, water tax, gas tax, and now you have movie tax

10. Kira_Yamato

But we don't know how high the tax is. That is why I've made that assumption, which I stated. Hence, since I've stated my assumption, it means that this answer holds if and only if my assumption holds. (i.e. If my assumption holds, the number of tickets you can buy is 3. However, if my assumption does not hold, depending on the tax rate of all the items, I can only buy 2 or 1 ticket(s)).

11. LagrangeSon678

charging tax for movie tickets is standard practice