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?

Algebra ->  Customizable Word Problem Solvers  -> Misc -> 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?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

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) About Me  (Show Source):
You can put this solution on YOUR website!
[ profit ] = [ revenue ] - [ cost ]
+p+=+r+-+c+
Let +x+ = number of containers of cookies sold
+r+=+4x+
+c+=+28+
+p+=+20+
-----------------
+20+=+4x+-+28+
Add +28+ to both sides
+4x+=+20+%2B+28+
+4x+=+48+
+x+=+12+
12 containers of cookies need to be sold

Answer by stanbon(75887) About Me  (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?
--------------
Cost:: 28
Revenue:: 4x
-----
Profit = Revenue - Cost
P(x) = 4x - 28
------
Solve:: 4x-28 = 20
4x = 48
x = 12 (# of containers needed)
---------
Cheers,
Stan H.
------------