Adele CD Sales Challenge: How Many CDs Did They Sell?

Question:

How many Adele 25 and Adele 21 CDs did the famous online music store sell in a particular month? What was the total revenue from these sales?

Answer:

To solve this problem, we need to set up a system of equations using the given information. Let x represent the number of Adele 25 CDs sold and y represent the number of Adele 21 CDs sold.

Explanation:

To solve this problem, we need to set up a system of equations using the given information. Let x represent the number of Adele 25 CDs sold and y represent the number of Adele 21 CDs sold.

From the first sentence, we know that 25 CDs were sold for $11.88 and 21 CDs were sold for $9.59. We can set up the following equations:

25x + 21y = 106,841.42

x + y = 9,451

We can solve this system of equations to find the values of x and y, which represent the number of Adele 25 and Adele 21 CDs sold, respectively.