document.write( "Question 57080: Mary changed a one-dollar bill for 14 coins made up of nickels and dimes. How many coins of each kind did she receive? \n" ); document.write( "
Algebra.Com's Answer #38780 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! .05(x)+.10(14-x)=1.00 \n" ); document.write( ".05x+1.4-.10x=1.00 \n" ); document.write( "-.05x=-.40 \n" ); document.write( "x=8 (nickles) \n" ); document.write( "Dimes = 14-x=14-8=6 \n" ); document.write( ". \n" ); document.write( "Check by plugging the values back into the original equation. \n" ); document.write( "(.05)(8)+(.10)(14-8)=1.00 \n" ); document.write( "1.00=1.00 \n" ); document.write( " |