Problema Solution
Karen sold 450 copies of her magazine for $5 each. If the buyer subscribed to her magazine, then they received a 20 percent discount on their purchase. There were 50 less than three times the amount of people who bought the magazine but did not subscribe. If she earned $2125, how many people subscribed to her magazine?
Answer provided by our tutors
From the given information, we know that Karen receives money in the following two forms:
individual purchases= $5/magazine
subscribers = $4/magazine
Therefore, we can write the total amount earned as:
2125=5(450)+4y
Where 'x' and 'y' are the number of magazines sold individually and by subscription, respectively. We also know:
3(450)-50=y
Solving for 'y', in these equations, we get:
y=
let 'x' represent the number of people who subscribed to the magazine, then '3x-50' represents the number of people who bought the magazine without a subscription
cost for subscribers:
5 - 0.2*5 = 4.
2125 = 4x + 5(3x-50)
solving for 'x' we have x=125
3*125 - 50 = 325
125 people have subscribed to Karen's magazine