document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=108831>Question 108831</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0536913331/algebrahomeworkh>Intermediate Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Problem #1\r<BR>\n" );
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document.write( "Solve: (x+3)(x-5)<0\r<BR>\n" );
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document.write( "Problem #2<BR>\n" );
document.write( "Weight on Mars: The weight M of an object on Mars varies directly as its weight E on Earth.  A person who weighs 95 lbs on Earth weights 38 lbs on Mars.  How much would a 100 lb person weigh on Mars<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 #79335 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=79335\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve: (x+3)(x-5)<0 <BR>\n" );
document.write( "Draw a number line and label the points x = -3 and x=5<BR>\n" );
document.write( "They divide the line into three intervals; you need to determine<BR>\n" );
document.write( "which intervals contain solutions to your inequality.<BR>\n" );
document.write( "Pick a \"test\" value from each interval to check in the inequality, as follows:<BR>\n" );
document.write( "x=-4, (-4+3)(-4-5) = -1*-9 = 9 >0 so no solutions in (-inf,-3)<BR>\n" );
document.write( "x= 0, (0+3)(0-5)=-15<0, so the interval (-3,5) is part of the solution.<BR>\n" );
document.write( "x=6, (6+3)(6-5)=9>0, so no solutions in (5,+inf)<BR>\n" );
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document.write( "Solution: the interval (-3,5)<BR>\n" );
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document.write( "Problem #2<BR>\n" );
document.write( "Weight on Mars: The weight M of an object on Mars varies directly as its weight E on Earth. A person who weighs 95 lbs on Earth weights 38 lbs on Mars. How much would a 100 lb person weigh on Mars<BR>\n" );
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document.write( "Use a proportion:<BR>\n" );
document.write( "Let \"x\" be wt. of a 100 lb person on Mars<BR>\n" );
document.write( "x/100 = 38/95<BR>\n" );
document.write( "x = 100*0.4 = 40 lbs.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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