Question

The function C(x)=17.5x−10

represents the cost (in dollars) of buying x
tickets to the orchestra with a $10 coupon.

a. How much does it cost to buy 5 tickets?

It costs $( ) to buy 5 tickets.

b. How many tickets can you buy with $130?

You can buy ( ) tickets.

Answer 1

With $130 you can buy 8 tickets

Explanation:

Answer 2

a) Substitute 5 for x

C(x)=87.5-10

The answer you get is $77.5

b) This time substitute 130 for C(x)

130=17.5x-10

140=17.5x

8=x

The answer you get is 8 tickets