document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=325684>Question 325684</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1st one is....<BR>\n" );
document.write( "\"A coin bank contains nickels,dimes and quarters totaling $5.45. If there are twice as many quarters as dimes, and 11 more nickels than quarters, how many of each coin are in the bank?\"\r<BR>\n" );
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document.write( "2nd one:<BR>\n" );
document.write( "\"A vending machine contains 6 times as many quarters as dimes. If the total amount of money in the machine is $28.50, how many quarters are there?\r<BR>\n" );
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document.write( "and the last one:<BR>\n" );
document.write( "\"A solution of 63% is mixed with a solution of 43% to form 40 liters of a 53% solution. How much of the 63% solution must she use? (In liters)\"\r<BR>\n" );
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document.write( "Thanks :)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #233162 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=233162\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1st one is....<BR>\n" );
document.write( "\"A coin bank contains nickels,dimes and quarters totaling $5.45. If there are twice as many quarters as dimes, and 11 more nickels than quarters, how many of each coin are in the bank?\"<BR>\n" );
document.write( "let dimes = x<BR>\n" );
document.write( "quarters = 2x<BR>\n" );
document.write( "nickels = 2x+11<BR>\n" );
document.write( "Total money = 545 cents<BR>\n" );
document.write( "10x+25*2x+5(2x+11)=545<BR>\n" );
document.write( "10x+50x+10x+55=545<BR>\n" );
document.write( "70x=545-55<BR>\n" );
document.write( "70x=490<BR>\n" );
document.write( "x=7 dimes<BR>\n" );
document.write( "2x= 2*7= 14 quarters<BR>\n" );
document.write( "nickels = 2x+11=2*7+11=25<BR>\n" );
document.write( "..\r<BR>\n" );
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document.write( "2nd one:<BR>\n" );
document.write( "\"A vending machine contains 6 times as many quarters as dimes. If the total amount of money in the machine is $28.80, how many quarters are there?\r<BR>\n" );
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document.write( "dimes = x<BR>\n" );
document.write( "quarters = 6x<BR>\n" );
document.write( "money 2880 cents<BR>\n" );
document.write( "..<BR>\n" );
document.write( "10x+25*6x=2800<BR>\n" );
document.write( "10x+150x=2880<BR>\n" );
document.write( "160x=2880<BR>\n" );
document.write( "x= 18 dimes <BR>\n" );
document.write( "6x = 108 quarters<BR>\n" );
document.write( "..\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "and the last one:<BR>\n" );
document.write( "\"A solution of 63% is mixed with a solution of 43% to form 40 liters of a 53% solution. How much of the 63% solution must she use? (In liters)\"<BR>\n" );
document.write( "63% =x liters<BR>\n" );
document.write( "43%= 40-x liters<BR>\n" );
document.write( "53% 40 liters<BR>\n" );
document.write( "..<BR>\n" );
document.write( "0.63x+0.43(40-x)= 0.53*40<BR>\n" );
document.write( "0.63x+17.20-0.43x= 21.2<BR>\n" );
document.write( "0.2x = 4<BR>\n" );
document.write( "x=20 liters\r<BR>\n" );
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document.write( " </SPAN>\n" );
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