document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187920>Question 187920</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Biologists have observed that the chirping rate of crickets of a certain species is related to temperature and the relationship appears to be very linear.  A cricket produces 120 chirps per minute at 80 degrees F and 160 chirps per minute at 85 degress F. If the crickets are chirping at 130 chrps per minute,estimate the temperature. Round to the nearest degree  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140883 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=140883\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Tahoma\" size=1.5><BR>\n" );
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document.write( "We need to Interpolate the given data to find the unknown temperature.\r<BR>\n" );
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document.write( "Given: Chirps per minute = equivalent Temperature in Fahrenheit<BR>\n" );
document.write( "(A)<font color=blue>120cpm</font>=(D)<font color=blue>80F</font><BR>\n" );
document.write( "(B)<font color=blue>130cpm</font>=(E)<font color=red> x</font><BR>\n" );
document.write( "(C)<font color=blue>160cpm</font>=(F)<font color=blue>85F</font>\r<BR>\n" );
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document.write( "And we interpolate, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28A-C%29%2F%28A-B%29=%28D-F%29%2F%28D-E%29 ALIGN=MIDDLE  ALT=\"%28A-C%29%2F%28A-B%29=%28D-F%29%2F%28D-E%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28120-160%29%2F%28120-130%29=%2880-85%29%2F%2880-x%29 ALIGN=MIDDLE  ALT=\"%28120-160%29%2F%28120-130%29=%2880-85%29%2F%2880-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >==><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-40%29%2F-10=%28-5%29%2F%2880-x%29 ALIGN=MIDDLE  ALT=\"%28-40%29%2F-10=%28-5%29%2F%2880-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >==><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4=%28-5%29%2F%2880-x%29 ALIGN=MIDDLE  ALT=\"4=%28-5%29%2F%2880-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, Cross multiply:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2A%2880-x%29=-5 ALIGN=MIDDLE  ALT=\"4%2A%2880-x%29=-5\"   DISABLED_style= \"max-width:90%; height:auto;\" >==><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=320-4x=-5 ALIGN=MIDDLE  ALT=\"320-4x=-5\"   DISABLED_style= \"max-width:90%; height:auto;\" >, Combine similar terms:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=320%2B5=4x ALIGN=MIDDLE  ALT=\"320%2B5=4x\"   DISABLED_style= \"max-width:90%; height:auto;\" >==><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=325=4x ALIGN=MIDDLE  ALT=\"325=4x\"   DISABLED_style= \"max-width:90%; height:auto;\" >==><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%28325%2981.25%2Fcross%284%29=cross%284%29x%2Fcross%284%29 ALIGN=MIDDLE  ALT=\"cross%28325%2981.25%2Fcross%284%29=cross%284%29x%2Fcross%284%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28x=81.25%5Eo%2AF%29 ALIGN=MIDDLE  ALT=\"red%28x=81.25%5Eo%2AF%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ==> <font color=red>81 deg.Fahrenheit </font> (rounded)\r<BR>\n" );
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document.write( "Thank you,<BR>\n" );
document.write( "Jojo</font><BR>\n" );
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