The cost consists of a fee and a per ride cost so it will look like:
c=f+pr where p is the price per ride and r is the number of times ridden...
35=f+5p and 59=f+11p solve both for f...and set f=f
35-5p=59-11p
35+6p=59
6p=24
p=4 so the price per ride is $4.00, now we can use either original equation to solve for the fee...
35=f+5(4)
35=f+20
f=15 so the cost function is:
c(r)=4r+15 where r is the number of rides taken.
Entry fee=$15.00
One Roller Coaster Ride=$4.00
