Question

Techwiz electronics makes a profit of $35 for each mp3 and $18 for each DVD last week techwiz sold a combined total of 118 mp3 and DVD players. Let x be the number of mp3 sold last week write an expression for the combined total profit (in dollars) made last week

Answer 1

The total profit is
`p = 17x + 2124`

Explanation:

From the question we are told that

The profit made on each mp3 is k = $35

The profit made on each mp3 is y = $18

The total amount sold is n = 118

Now given that the amount of mp3 sold is x then the amount of DVD sold is mathematically evaluated as

`n - x`

Now the profit made on the x number of mp3 sold is

`x * 35 = 3x`

And the the profit made from the n-x number of DVD sold is 18 (n-x ) = 18 - 18x

So the total profit made last week from the sales of both mp3 and DVD is

`p = 35x + 18n - 18x`

`p = 17x + 18(118)`

`p = 17x + 2124`