document.write( "Question 61817: a women has 3 times as many dimes as nickels. she has $4.20. How many of each cion does she have? \n" ); document.write( "
Algebra.Com's Answer #42568 by josmiceli(19441) You can put this solution on YOUR website! d = number of dimes \n" ); document.write( "n = number of nickels \n" ); document.write( "10d + 5n = 420 \n" ); document.write( "d = 3n \n" ); document.write( "10*3n + 5n = 420 \n" ); document.write( "30n + 5n = 420 \n" ); document.write( "35n = 420 \n" ); document.write( "n = 12 \n" ); document.write( "d = 3(12) \n" ); document.write( "d = 36 \n" ); document.write( "She has 12 nickels and 36 dimes \n" ); document.write( "check \n" ); document.write( "5(12) + 10(36) = 420 \n" ); document.write( "60 + 360 = 420 \n" ); document.write( "420 = 420 \n" ); document.write( "OK \n" ); document.write( " |