document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=667806>Question 667806</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a piggy-bank contains a certain number of coins. of which, 53 are dimes and 19 are nickels.  the remainder of the coins are quarters.  if the probability of selecting a quarter from this bank is 1/4, how many quarters does the bank contain? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #415218 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=415218\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a piggy-bank contains a certain number of coins. of which, 53 are dimes and 19 are nickels. the remainder of the coins are quarters. if the probability of selecting a quarter from this bank is 1/4, how many quarters does the bank contain?<BR>\n" );
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document.write( "Let \"q\" be the number of quarters.<BR>\n" );
document.write( "P(pick a quarter) = q/(53+19+q) = 1/4<BR>\n" );
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document.write( "q/(72+q) = 1/4<BR>\n" );
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document.write( "72+q = 4q<BR>\n" );
document.write( "3q = 72<BR>\n" );
document.write( "q = 24 (# of quarters)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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