document.write( "Question 448343: One day a hot dog cart sold 71 sausages. The polish sausages cost $5 each and the kosher sausages cost $3 each. In all $297 worth of sausages were sold. How many of each kind were sold? \n" ); document.write( "
Algebra.Com's Answer #308500 by mananth(16946) You can put this solution on YOUR website! Polish x Numbers \n" ); document.write( "Kosher ------------ y Numbers \n" ); document.write( "x+y=71 .............1 \n" ); document.write( "5x+3y=297 .............2 \n" ); document.write( "Eliminate y \n" ); document.write( "multiply (1)by -3 \n" ); document.write( "Multiply (2) by 1 \n" ); document.write( "-3x-3y= -213 \n" ); document.write( "5x+3y=297 \n" ); document.write( "Add the two equations \n" ); document.write( "2x = 84 \n" ); document.write( "/2 \n" ); document.write( "x= 42 \n" ); document.write( "plug value of x in (1) \n" ); document.write( "x+y= 71 \n" ); document.write( "42+y=71 \n" ); document.write( "y=71-42 \n" ); document.write( "y=29 \n" ); document.write( " \n" ); document.write( " |