document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1058017>Question 1058017</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The water usage in a city varies directly with the population of a city.  City A has a population of 225,000 people and uses an average of 28,925,000 gallons of water per day.  How many gallons of water per day should we expect City B to produce if its population is 4,890,000 people? \r<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 #673027 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=673027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = gallons/day of water city B uses<BR>\n" );
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document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+28925000+%2F+225000+=+x+%2F+4890000+ ALIGN=MIDDLE  ALT=\"+28925000+%2F+225000+=+x+%2F+4890000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide top and bottom of the left side<BR>\n" );
document.write( "by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25000+ ALIGN=MIDDLE  ALT=\"+25000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1157+%2F+9+=+x+%2F+4890000+ ALIGN=MIDDLE  ALT=\"+1157+%2F+9+=+x+%2F+4890000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9%2A4890000+ ALIGN=MIDDLE  ALT=\"+9%2A4890000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1157%2A4890000+=+9x+ ALIGN=MIDDLE  ALT=\"+1157%2A4890000+=+9x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9x+=+5657730000+ ALIGN=MIDDLE  ALT=\"+9x+=+5657730000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+628636666.7+ ALIGN=MIDDLE  ALT=\"+x+=+628636666.7+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "City B will use 628,636,666.7 gallons/day<BR>\n" );
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document.write( "check:<BR>\n" );
document.write( "Take the logs of both sides of (1)<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+log%28+28925000+%29+-+log%28+225000+%29+=+log%28+628636666.7+%29+-+log%28+4890000+%29+ ALIGN=MIDDLE  ALT=\"+log%28+28925000+%29+-+log%28+225000+%29+=+log%28+628636666.7+%29+-+log%28+4890000+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+7.461273368+-+5.352182518+=+8.798399709+-+6.689308859+ ALIGN=MIDDLE  ALT=\"+7.461273368+-+5.352182518+=+8.798399709+-+6.689308859+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.10909085+=+2.10909085+ ALIGN=MIDDLE  ALT=\"+2.10909085+=+2.10909085+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
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