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.
Write a system of two equations with the variables m and f in each to represent this problem.
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Write this out as equations with m=membership fee and f=session fee, so you would have
m+5f=25 and m+10f=40
isolate m or f in one of them.... me is clearly easier
isolating m in the second equation gives m=40-10f
replace that into the first equation to get
40-10f+5f=25 and solve for f and then for m
you should get an answer of m=10 and f=3
are you serious that was easier than my older sister