Algebra 9R (NYS)  HELP!!!!
posted by Laruen .
A hotel charges $20 for the use of its dining room plus $2.50 for each lunch. An association is using the hotel for a meeting and charges its members $3 per person to attend. Four nonpaying members are invited as honorees. How many paying members must attend in order for the association to meet its expenses?

If there are p paying members, their fees ($3 each) must cover the costs (including the 4 meals for the guests):
3p = 20 + 2.5p + 4*2.5
p = 60
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