SOLUTION: You spend $28 on ingredients to make cookies. You charge $4 per container of cookies. How many containers do you need to sell to earn $20 in profit?

Question 1055163: You spend $28 on ingredients to make cookies. You charge $4 per container of cookies. How many containers do you need to sell to earn $20 in profit?
Found 2 solutions by josmiceli, stanbon:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
[ profit ] = [ revenue ] - [ cost ]

Let = number of containers of cookies sold

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Add to both sides

12 containers of cookies need to be sold

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You spend $28 on ingredients to make cookies. You charge $4 per container of cookies. How many containers do you need to sell to earn $20 in profit?
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Cost:: 28
Revenue:: 4x
-----
Profit = Revenue - Cost
P(x) = 4x - 28
------
Solve:: 4x-28 = 20
4x = 48
x = 12 (# of containers needed)
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Cheers,
Stan H.
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