Victor Technology V12 Manual Do Utilizador

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V I C T O R   T E C H N O L O G Y  
 
 
44 
•  Third month:  50 bricks at $0.52 a brick 
•  Fourth month:   100 bricks at $0.61 a brick 
•  Fifth month:  250 bricks at $0.49 a brick 
 
Find the weighted mean cost of the bricks. 
 
ENTRIES DISPLAY 
 b    ∑
-
   
48.00 
Displays the first x value.  
.68  ENTER   150   
∑+   
1.00 
Displays which entry has just been entered … 
the first data pair. 
.43  ENTER   100   
∑+   
2.00 
Displays which entry has just been entered … 
the second data pair. 
.52  ENTER   50   
∑+    
3.00 
Displays which entry has just been entered … 
the third data pair. 
.61  ENTER   100   
∑+   
4.00 
Displays which entry has just been entered … 
the fourth data pair. 
.49  ENTER   250   
∑+   
5.00 
Displays which entry has just been entered … 
the fifth data pair. 
 r   x w  
0.55 
Displays the weighted mean for the x values 
(price). 
 
 
Mathematical Features and Functions 
 
Most mathematical operations need only one number to be in the calculator (on 
the display screen) before a function button is touched.  Touching the function 
button displays the result in the display screen in place of the originally entered 
number. 
 
Fractional Values