document.write( "Question 1012772: Pleas help me solve this problem. A piggy bank contains nickels, dimes, and quarters. The number of nickles is 15 more than 3 times the number of dimes. There are as many quarters as nickles and dimes combined. If there are 78 coins in total,how many of each coin are there? \n" ); document.write( "

Algebra.Com's Answer #628856 by macston(5194) $\"\"$ $\"About$

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\n" ); document.write( "N=nickels; D=dimes; Q=quarters
\n" ); document.write( ".
\n" ); document.write( "N=3D+15
\n" ); document.write( "Q=N+D=4D+15
\n" ); document.write( ".
\n" ); document.write( "N+D+Q=78
\n" ); document.write( ".
\n" ); document.write( "(3D+15)+D+(4D+15)=78
\n" ); document.write( "8D+30=78
\n" ); document.write( "8D=48
\n" ); document.write( "D=6
\n" ); document.write( "ANSWER 1: There are 6 dimes.
\n" ); document.write( ".
\n" ); document.write( "N=3D+15=3(6)+15=18+15=33
\n" ); document.write( "ANSWER 2: There are 33 nickels.
\n" ); document.write( ".
\n" ); document.write( "Q=4D+15=4(6)+15=24+15=39
\n" ); document.write( "ANSWER 3: There are 39 dimes.
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\n" ); document.write( "CHECK:
\n" ); document.write( "N+D+Q=78
\n" ); document.write( "33+6+39=78
\n" ); document.write( "78=78
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