document.write( "Question 349034: i have 30 coins in my pocket, some dimes, twice as many nickels, and the rest quareters. the total value is $5.30. how many dimes do i have? \n" ); document.write( "
Algebra.Com's Answer #249502 by mananth(16946)![]() ![]() You can put this solution on YOUR website! dimes=x \n" ); document.write( "nickels=2x \n" ); document.write( "quarters = 30-(x+2x) \n" ); document.write( "=30-3x. \n" ); document.write( ".. \n" ); document.write( "10x+5*2x+25(30-3x)=530 \n" ); document.write( "10x+10x+750-75x=530 \n" ); document.write( "-55x=530-750 \n" ); document.write( "-55x=-220 \n" ); document.write( "x=4 dimes \n" ); document.write( "nickels = 2*4 =8 \n" ); document.write( "quarters = 30-3*4= 18 \n" ); document.write( "... \n" ); document.write( "4*10+8*5+18*25=530 \n" ); document.write( " |