document.write( "Question 424233: Robert has 50 coins, all in nickels and dimes, amounting to $3.50. How many nickels does he have?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #321995 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
n+d=50
\n" ); document.write( "5n+10d=350
\n" ); document.write( "5n+5d=250
\n" ); document.write( "5d=100
\n" ); document.write( "d=20
\n" ); document.write( "n=30
\n" ); document.write( "Robert has 30 nickels and 20 dimes..
\n" ); document.write( "
\n" );