Problema Solution
Muriel is contemplating a job as a waitress. She would be paid $4 per hour plus tips. The other waitresses have told her that an average tip at that restaurant is $3 per table served. If she works 20 hours per week, how many tables would she have to serve in order to make $191 during the week?
Answer provided by our tutors
Let 'x' be the number of tables that Muriel needs to serve in one week.
In one week she will be paid 4*20 = $80 and she will earn $(3*x) from tips. Thus we have
4*20 + 3*x = 191 (the total money she wants to make)
80 + 3*x = 191
3*x = 191 - 80
3*x = 111
x = 37 tables
Muriel needs to serve 37 tables per week to earn $191.