document.write( "Question 459896: Mary can purchase roses and daisies from a flower shop. She can buy four roses and five daisies for $7.90 or two roses and six daisies for $5.70. what is the individual cost for each rose and daisy. \n" ); document.write( "
Algebra.Com's Answer #315390 by mananth(16946) You can put this solution on YOUR website! rose cost $ x \n" ); document.write( "Daisy cost $ y \n" ); document.write( " \n" ); document.write( "4x+5y=7.9 .............1 \n" ); document.write( "2x+6y=5.7 .............2 \n" ); document.write( " \n" ); document.write( "multiply (1)by -6 \n" ); document.write( "Multiply (2) by 5 \n" ); document.write( "-24x-30y=-47.4 \n" ); document.write( "10x+30y=28.5 \n" ); document.write( "Add the two equations \n" ); document.write( "-14x=-18.9 \n" ); document.write( "/-14 \n" ); document.write( "x=1.35 \n" ); document.write( "plug value of x in (1) \n" ); document.write( "4x+5y=7.9 \n" ); document.write( "5.4+5y= 7.9 \n" ); document.write( "5y=7.9-5.4 \n" ); document.write( "5y=2.5 \n" ); document.write( "y=0.50 \n" ); document.write( " \n" ); document.write( " |