Matthew would like to join an online book club that costs $84 per year. If he signs up for an automatic renewal, he will get 5% off his membership. If he signs op in July, he will get an additional 20% off. In addition, for every 2 people he refers to the club, he can get $5 off his membership. How many people does Matthew refer if he pays less than $48 for his membership? Explain.
4 answers
can't say, without knowing whether or not he got any discounts.
Lets just say He signs up In july, for the 20% discount.
In that case, he gets a $16.80 discount, making his base membership cost $67.20
SO, he gets an additional discount of $19.20 to bring his cost down to $48.
At $5/referral, that would mean 4 referrals would do the trick.
In symbols, we have
84(.8)-5n < 48
67.20 - 5n < 48
-5n < 19.20
n > 3.84
SO, he gets an additional discount of $19.20 to bring his cost down to $48.
At $5/referral, that would mean 4 referrals would do the trick.
In symbols, we have
84(.8)-5n < 48
67.20 - 5n < 48
-5n < 19.20
n > 3.84
Matthew would like to join an online book club that costs $84 per year. If he signs up for an automatic renewal, he will get 5% off his membership. If he signs up in July, he can get an additional 20% off. In addition, for every 2 people he refers to the club, he can get $5 off his membership. How many people does Matthew refer if he pays less than $48 for his membership?
1 answer