document.write( "Question 997907: Lillian has 14 coins in her wallet. They coins total $1.30. She has twice as many dimes as quarters and twice as many nickels as dimes. How many quarters , dimes and nickels does she have ???
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Algebra.Com's Answer #615835 by addingup(3677)![]() ![]() You can put this solution on YOUR website! q+d+n= 14 \n" ); document.write( "0.25q+0.10d+0.05n= 1.30 \n" ); document.write( "----------------- \n" ); document.write( "1/2d= q (twice as many dimes means 1/2 the dimes = quarters) \n" ); document.write( "2d= n \n" ); document.write( "------------------------------ \n" ); document.write( "Let's clarify and continue. We have: \n" ); document.write( "d= d \n" ); document.write( "1/2d= q \n" ); document.write( "2d= n \n" ); document.write( "1/2d+d+2d= 14 \n" ); document.write( "3.5d= 14 \n" ); document.write( "d= 4 There are 4 dimes, (1/2d= q= 4/2=2)2 quarters, and (2d= 4*2=8)8 nickels \n" ); document.write( "Proof \n" ); document.write( "4*0.10= 0.40 \n" ); document.write( "2*0.25= 0.50 \n" ); document.write( "8*0.05= 0.40 \n" ); document.write( "_ _ _ _------ \n" ); document.write( "Total.....1.30 We have the correct answer \n" ); document.write( " |