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A University of Florida student earns $15 per day delivering advertising brochures door-to-door, plus 75¢ for each person he interviews. How many people did he interview on a day when he earned $57?

Answer :

Mathnerd35
15 + 0.75x = 57
-15 -15
0.75x = 42
0.75x/0.75 = 42/0.75
x = 56 people

The student interviewed 56 people on the day he earned $57
if the student earned $57 in that given day to find number of people interviewed we first subtract the daily rate of $15 from $57 then we divide the answer by 75c to get number of people interviewed which is 56

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