document.write( "Question 1034108: michael has $1.85 in dimes and nickels . he has a total of 25 coins . how many of each does he have? \n" ); document.write( "
Algebra.Com's Answer #648724 by addingup(3677)![]() ![]() You can put this solution on YOUR website! d+n = 25 subtract d from both sides: \n" ); document.write( "n = 25-d I'll use this value for n next: \n" ); document.write( "0.10d+0.05n = 1.85 \n" ); document.write( "0.10d+0.05(25-d)= 1.85 \n" ); document.write( "0.10d+1.25-0.05d = 1.85 \n" ); document.write( "0.05d = 0.60 \n" ); document.write( "d = 12 he has 12 dimes and 25-12 = 13 nickels \n" ); document.write( "````````````````````````````````````````` \n" ); document.write( "Check: \n" ); document.write( "12*0.10 = 1.2 \n" ); document.write( "13*0.05 = 0.65 \n" ); document.write( " . . . .-------- \n" ); document.write( "Total . . 1.85 Correct \n" ); document.write( " |