document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=396601>Question 396601</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist has 5 gallons of salt solution with a concentration of 0.2 pounds per gallon and another solution with a concentration of 0.5 pounds per gallon. How many gallons of the stronger solution must be added to the weaker solution to get a solution that contains 0.3 pounds per gallon? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #281320 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=281320\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chemist has 5 gallons of salt solution with a concentration of 0.2 pounds per gallon and another solution with a concentration of 0.5 pounds per gallon. How many gallons of the stronger solution must be added to the weaker solution to get a solution that contains 0.3 pounds per gallon?<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "salt + salt = salt<BR>\n" );
document.write( "0.2*5 + 0.5x = 0.3(5+x)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by 10 to get:<BR>\n" );
document.write( "2*5 + 5x = 3*5+3x<BR>\n" );
document.write( "2x = 1*5<BR>\n" );
document.write( "x = 2.5 gallons (amt of stronger needed for the mixture)<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );