document.write( "Question 832897: An investor bought 225 shares of stock, stock A at $50 per share and stock B $75 per share. If $13,750 worth of stock was purchased, how many shares of each kind did the investor buy? \n" ); document.write( "
Algebra.Com's Answer #502221 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
An investor bought 225 shares of stock, stock A at $50 per share and stock B $75 per share. If $13,750 worth of stock was purchased, how many shares of each kind did the investor buy?
\n" ); document.write( "--------
\n" ); document.write( "Quantity: f + s = 225 shares
\n" ); document.write( "Value: 50f+75s = 13750
\n" ); document.write( "--------------------------------
\n" ); document.write( "Modify:
\n" ); document.write( "2f + 2s = 2*225
\n" ); document.write( "2f + 3s = 550
\n" ); document.write( "-----
\n" ); document.write( "Subtract and solve for \"s\":
\n" ); document.write( "s = 100 (# of $75 shares)
\n" ); document.write( "----
\n" ); document.write( "Solve for \"f\":
\n" ); document.write( "f = 225 - 100 = 125 (# of $50 shares)
\n" ); document.write( "-------------------------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "-----------------
\n" ); document.write( "
\n" );