Compute the cost to produce 300 units using machine 1 and


You manufacture WIDGETs.  Your old machine broke.

You can buy Machine #1 for $ 5000.  Using machine #1, each widget will cost $ 10 to make.

You can buy Machine #2 for $ 2000.  Using machine #2, each widget will cost $ 15 to make.

I would like to determine the breakeven point for A and B using TWO different methods.

On sheet1, we will use GOAL-SEEK.  On sheet2, we will use graphs.

Here is an outline for sheet1:

A

B

# of units

 

Cost to make B2 units using machine #1

 

Cost to make B2 units using machine #2

 

Breakeven Point

 

 

 

Hint: BEP is where both costs are equal.  In general, when P=Q, then P-Q = 0.

On sheet2, create the following grid

A

B

C

D

 

# units

Machine #1 cost

Machine #2 cost

Which is cheaper

 

300

 

 

 

 

400

 

 

 

 

500

 

 

 

 

600

 

 

 

 

700

 

 

 

 

800

 

 

 

 

Compute the cost to produce 300 units using machine #1 and then by machine #2, and using an =IF statement, tell me which machine is cheaper.

Do the same for 400, 500, 600, 700, 800 units.

As you can see, #2 is cheaper for smaller quantities and #1 is cheaper for larger quantities.

Please create a line graph showing the two costs intersecting.  Please have quantity as the x axis and dollars as the y axis.

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