document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=212807>Question 212807</A>: <I><SPAN STYLE=\"word-break: break-all;\"> From a rational expressions and equations worksheet:  Tried to answer. am I on the right track. Help solve completely.\r<BR>\n" );
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document.write( "Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test. \r<BR>\n" );
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document.write( "    a.	Write an expression that gives the total cost to test x animals.<BR>\n" );
document.write( "                       C=2500+3x\r<BR>\n" );
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document.write( "    b.	You can find the average cost per animal by dividing total costs by  <BR>\n" );
document.write( "        number of animals. Write the expression that gives the average cost per   <BR>\n" );
document.write( "        animal.<BR>\n" );
document.write( "                        c\x or 2500+3x/x\r<BR>\n" );
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document.write( "    c.	Find the average cost per animal for 10 animals. 100 animals. 1,000  <BR>\n" );
document.write( "        animals.<BR>\n" );
document.write( "                    10 = $253, 100 = $28, 1,000 = $5.50 <BR>\n" );
document.write( "    d.	As the number of animals tested increases, what happens to the average  <BR>\n" );
document.write( "        cost to test the animals? Would the average cost ever fall below $3.00?   <BR>\n" );
document.write( "        If so, identify a value that supports your answer. If not, explain how  <BR>\n" );
document.write( "        you know. \r<BR>\n" );
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document.write( "    e.	How many animals should be tested for the average cost to be $5.00 per      <BR>\n" );
document.write( "        animal? <BR>\n" );
document.write( "Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #160734 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=160734\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From a rational expressions and equations worksheet: Tried to answer. am I on the right track. Help solve completely.<BR>\n" );
document.write( "Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "You seem to know what you are doing here, good work!<BR>\n" );
document.write( ":<BR>\n" );
document.write( "a. Write an expression that gives the total cost to test x animals.<BR>\n" );
document.write( "C=2500+3x<BR>\n" );
document.write( ";<BR>\n" );
document.write( "b. You can find the average cost per animal by dividing total costs by<BR>\n" );
document.write( "number of animals. Write the expression that gives the average cost per<BR>\n" );
document.write( "animal.<BR>\n" );
document.write( "c\x or 2500+3x/x<BR>\n" );
document.write( ";<BR>\n" );
document.write( "c. Find the average cost per animal for 10 animals. 100 animals. 1,000<BR>\n" );
document.write( "animals.<BR>\n" );
document.write( "10 = $253, 100 = $28, 1,000 = $5.50<BR>\n" );
document.write( ";<BR>\n" );
document.write( "d. As the number of animals tested increases, what happens to the average<BR>\n" );
document.write( "cost to test the animals? Would the average cost ever fall below $3.00?<BR>\n" );
document.write( "If so, identify a value that supports your answer. If not, explain how<BR>\n" );
document.write( "you know.<BR>\n" );
document.write( ";<BR>\n" );
document.write( "no, it costs at least $3 for each animal (3x)<BR>\n" );
document.write( ";<BR>\n" );
document.write( "e. How many animals should be tested for the average cost to be $5.00 per<BR>\n" );
document.write( "animal? <BR>\n" );
document.write( "Use your equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282500%2B3x%29%2Fx ALIGN=MIDDLE  ALT=\"%282500%2B3x%29%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 5<BR>\n" );
document.write( "Multiply by x<BR>\n" );
document.write( "2500 + 3x = 5x<BR>\n" );
document.write( "2500 = 5x - 3x<BR>\n" );
document.write( "2500 = 2x<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2500%2F2 ALIGN=MIDDLE  ALT=\"2500%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 1250 animals for a $5 per animal cost </SPAN>\n" );
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