document.write( "Question 1063865: Mary has 30 nickels and dimes totaling $2.40. How many of each does she have \n" ); document.write( "
Algebra.Com's Answer #678946 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Mary has 30 nickels and dimes totaling $2.40. How many of each does she have \n" ); document.write( "============ \n" ); document.write( "n + d = 30 --------- # of coins \n" ); document.write( "5n + 10d = 240 --------Value of coins \n" ); document.write( "--> n + 2d = 48 ---------- 2nd eqn divided by 5 \n" ); document.write( "=============================\r \n" ); document.write( "\n" ); document.write( "n + d = 30 --------- # of coins \n" ); document.write( "n + 2d = 48 \n" ); document.write( "------------ Subtract \n" ); document.write( "-d = -18 \n" ); document.write( "--> 18 dimes \n" ); document.write( "12 nickels \n" ); document.write( "---------------------------------------- \n" ); document.write( "Was that hard?\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |