document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1059298>Question 1059298</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help on this please, it might be simple to you but to me its hard! \r<BR>\n" );
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document.write( "     Tori has 8 coins, all of which are quarters and nickels. In all, they're worth $1.40. How many of each kind of coin does Tori have?<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 #674355 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=674355\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Don't despair, no one I know was born knowing math. Maybe Einstein, but I never met the guy... before my time ;-)<BR>\n" );
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document.write( "Tori has: q+n = 8 That's 2 variables, q and n. Too many, let's make it just one variable: Tori has q+n = 8, subtract q on both sides and we get:<BR>\n" );
document.write( "q-q+n = 8-q; n = 8-q (always do to one side what you do to the other)<BR>\n" );
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document.write( "Next:<BR>\n" );
document.write( "0.25q+0.10n = 1.40 substitute for n, like this:<BR>\n" );
document.write( "0.25q+0.10(8-q) = 1.40<BR>\n" );
document.write( "0.25q+0.80-0.10q = 1.40 simplify q on left and subtract 0.80 on both sides:<BR>\n" );
document.write( "0.15q = 0.60 divide both sides by 0.15:<BR>\n" );
document.write( "q = 4 Tori has 4 quarters and 8-4= 4 dimes<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "4*0.25 = 1<BR>\n" );
document.write( "4*0.10 = 0.40<BR>\n" );
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document.write( "Total . .1.40 Correct </SPAN>\n" );
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