document.write( "Question 215007: You have 15 coins in your pocket that are either quarters or nickles. the total $2.75. how many of each coin do you have? \n" ); document.write( "
Algebra.Com's Answer #162481 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! Q+N=15 Q=15-N \n" ); document.write( ".25Q+.05N=2.75 \n" ); document.write( ".25(15-N)+.05N=2.75 \n" ); document.write( "3.75-.25N+.05N=2.75 \n" ); document.write( "-.2N=2.75-3.75 \n" ); document.write( "-.2N=-1.000 \n" ); document.write( "N=-1.00/-.2 \n" ); document.write( "N=5 NUMBER OF NICJLES. \n" ); document.write( "Q+5=15 \n" ); document.write( "Q=15-5 \n" ); document.write( "Q=10 NUMBER OF QUARTERS. \n" ); document.write( "PROOF: \n" ); document.write( ".25*10+.05*5=2.75 \n" ); document.write( "2.50+.25=2.75 \n" ); document.write( "2.75=2.75 \n" ); document.write( " \n" ); document.write( " |