Question

The formula c=5p+215 relates c, the total cost in dollars of hosting a birthday party at a skating rink, to p, the number of people attending the party.

Solve for p
If Allies parents are willing to spend $300 for her party, how many people can attend? Show your work.

Answer 1

17

Explanation:

Since C represents the cost, and Allie's parents are willing to spend $300 for the party, our equation will now look like this:

300=5p+215

we are trying to find out how many people will able to attend

300=5p+215

-215 -215

---------------------

85 = 5p

divide by 5 on both sides to undo the multiplication (5p)

300=5p+215

-215 -215

---------------------

85 = 5p

÷5 = ÷5

--------------

17 = p

So, p (number of people attending) would be 17 :)

hope this helps!

Answer 2

C is the money that we can spend, 300.

300 = 5*(people comming) + 215.

300-215 = 5*P.

300-215= 85.

85/5=P

P=17.

17 people.