Problema Solution
Brandi is downloading music for her MP3 player. Albums cost $10 each, and singles cost $1 each. She wants to purchase at least 5 singles but wants to spend no more than $25 total. If Brandi purchases x albums and y singles, which of the following is a possible combination of albums and singles that Brandi could purchase and stay within her guidelines?
Answer provided by our tutors
If she's going to spend $25 maximum and $5 is allocated to singles, then $20 must be allocated to albums/singles.
2 albums would take up the rest of the purchase, 1 album would leave up to 10 singles and 0 albums would leave 20 singles.
So the total price can range from $5 to $25 in $1 increments, depending on whether more singles are purchased.
If one album is purchased, the total price can range from $15 to $25 by $1 increments.
If two albums are purchased, the total price is $25.