Question

To skate at Roller Heaven, each person must pay a membership fee (m) and a fee for each session (f). Art attended 5 sessions and paid $25 in all. Later, when he had attended 10 sessions, he paid $40 in all. How much is the membership fee and how much are the sessions.
Show how to solve this, using any method.

Answer 1

m is only paid initially so we know that the sessions 6to10 = 5 sessions costs $40-$25 =$15 so each session costs $15/5 =$3 =f, the fee then we know the first 5 sessions also costed $15 leaving the membership m=$10