Question

A local talent is selling underground CD's to get his rap career off the ground. Each crate contains 40 blank CD's. Each crate cost $30. How much should he sell his CD's to make a profit of $110? (Hint: Profit = Income - Expense)

Answer 1

If the crate costs $30 and he wants to make a profit of $110, the total selling value (Income) should be:

`\begin{gathered} \text{Profit}=\text{Income}-\text{Expense} \\ 110=\text{Income}-30 \\ \text{Income}=110+30=140 \end{gathered}`

Then, if the crate contains 40 blank CD's, in order to find the unitary price of each CD, we can divide the total Income by the number of CD's:

`\text{price}=(140)/(40)=3.5`

So each CD's should cost $3.50.