Question 685830:  You invested a total of $11,200 in shares of the three stocks at the given prices, and expected to earn $304 in annual dividends.  If you purchased a total of 250 shares, how many shares of each stock did you purchase? 
                    Price /   Dividend Yield 
GE(general electric) $16     7% 
WMT(Walmart)         $56     2% 
XOM(Exxon Mobile)    $80     2% 
 Found 2 solutions by  MathTherapy, amalm06: Answer by MathTherapy(10557)      (Show Source): 
You can  put this solution on YOUR website!  
You invested a total of $11,200 in shares of the three stocks at the given prices, and expected to earn $304 in annual dividends.  If you purchased a total of 250 shares, how many shares of each stock did you purchase? 
                    Price /   Dividend Yield 
GE(general electric) $16     7% 
WMT(Walmart)         $56     2% 
XOM(Exxon Mobile)    $80     2%
 
 
Finance problem on math website!!
 
 
Anyway,
 
 
Amount of GE shares purchased = 100
 
 
Amount of WMT shares purchased = 100
 
 
Amount of XOM shares purchased = 50 
 
 Answer by amalm06(224)      (Show Source): 
You can  put this solution on YOUR website! Number of Shares: x+y+z=250
 
 
Cost of Shares: 16x+5y+80z=11200
 
 
Dividends: 0.07x+0.02y+0.02z=304
 
 
Use Gaussian elimination to solve for x,y, and z.  
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