document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=118146>Question 118146</A>: <I><SPAN STYLE=\"word-break: break-all;\"> HI<BR>\n" );
document.write( "please help me with this\r<BR>\n" );
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document.write( "A parking meter accepts only Quarters and dollars. If there are 31 coins and a value of $ 20.50 how many quarters and dollars are there.\r<BR>\n" );
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document.write( "thanks for any help coming my way </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #86289 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=86289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A parking meter accepts only Quarters and dollars. If there are 31 coins and a value of $ 20.50 how many quarters and dollars are there.<BR>\n" );
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document.write( "let q = no. of quarters,<BR>\n" );
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document.write( "let d = no. of dollar coins<BR>\n" );
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document.write( "We can make two simple equations from the given information<BR>\n" );
document.write( "The number of coins equation (it says there are 31 coins):<BR>\n" );
document.write( "q + d = 31<BR>\n" );
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document.write( "It says the value of the coins is 20.50<BR>\n" );
document.write( ".25g + 1d = 20.50<BR>\n" );
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document.write( "1d and d are the same so use elimination<BR>\n" );
document.write( " q +  d = 31<BR>\n" );
document.write( ".25q +d = 20.50<BR>\n" );
document.write( "------------------subtracting eliminates d, find q<BR>\n" );
document.write( ".75q +0 = 10.50<BR>\n" );
document.write( "q = 10.50/.75<BR>\n" );
document.write( "q = 14 quarters<BR>\n" );
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document.write( "That would leave us:<BR>\n" );
document.write( "31 - 14 = 17 dollar coins<BR>\n" );
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document.write( "Check that in our value equation<BR>\n" );
document.write( ".25(14) + 1(17) =<BR>\n" );
document.write( "  3.50 + 17 = 20.50, confirms our solutions<BR>\n" );
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document.write( "This this help? Did it make sense to you?     </SPAN>\n" );
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