document.write( "Question 810501: A parking meter contains dimes and quarters worth $5.05. There are 28 coins in all. Find how many of each there are are.
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #488193 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 25q+10d=505, \n" ); document.write( "d+q=28 \n" ); document.write( "d=28-q\r \n" ); document.write( "\n" ); document.write( "5q+2d=101 \n" ); document.write( "5q+2*(28-q)=101 \n" ); document.write( "5q+56-2q=101 \n" ); document.write( "3q=45 \n" ); document.write( "q=15 \n" ); document.write( "d=13 \n" ); document.write( "check \n" ); document.write( "15*25+13*10=505 \n" ); document.write( "375+130=505 \n" ); document.write( "505=505 \n" ); document.write( "ok\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |