document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=218851>Question 218851</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 2:3 concrete mix means that for every two parts of sand , three parts of gravel are used. How much sand should be used in a mix composed of 25 cubic feet of gravel? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164728 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=164728\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A 2:3 concrete mix means that for every two parts of sand , three parts of gravel are used. How much sand should be used in a mix composed of 25 cubic feet of gravel?<BR>\n" );
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document.write( "2:3 is the same as 2x:3x where 2x is the sand and 3x is the gravel.<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "2x + 3x = 25 ft^3<BR>\n" );
document.write( "5x = 25 <BR>\n" );
document.write( "x = 5 ft^3<BR>\n" );
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document.write( "sand = 2x = 10 ft^3<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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