Question

camille is attending a fundraiser. she pays for her admission and buys raffle tickets for $5 each. if she buys 10 raffle tickets, then she would spend a total of $135 at the fundraiser.
the number s of dollars camille spends at the fundraiser is a function of r, the number of raffle tickets she buys.
write the functions formula.
s =

Explanation:

Step1: Find admission cost

Let admission cost be \( A \). Raffle tickets cost $5 each, 10 tickets cost LXI1 dollars. Total spend with 10 tickets is $135, so \( A + 50 = 135 \). Solving, \( A = 135 - 50 = 85 \) dollars.

Step2: Formulate the function

Total spend \( S \) is admission plus raffle cost. Raffle cost for \( r \) tickets is \( 5r \), so \( S = 5r + 85 \).

Answer:

\( S = 5r + 85 \)