182 12: The Equation Solver
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
Profit
=
(Price
×
Quantity)
-
(Variable costs
×
Quantity)
-
Fixed Costs
The C-Sharp Piano Corporation sells pianos for $6,000. Variable costs
are $4,100; fixed costs per year are $112,000. How many pianos
must C-Sharp sell this year in order to earn a profit of $130,000
?
(In
past years, C-Sharp has had to sell between 100 and 200 pianos to
make an acceptable profit. You can use this information as initial
guesses.)
Press
, then enter the equation:
Keys: Display:
Description:
I
Stores, verifies, and
creates labels for the
equation.
6000
Stores price.
4100
112000
130000
Stores variable cost,
fixed cost, and profit.
The following steps enter guesses for
QTY
. If the Solver must search
iteratively to solve for
QTY
, it will begin by using the estimates 100 and
200.
Keys: Display:
Description:
100
The first guess for
QTY
.
200
The second guess for
QTY
.