document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=268897>Question 268897</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Cowling’s rule. Cowling’s rule is another method for<BR>\n" );
document.write( "determining the dosage of a drug to prescribe to a child.<BR>\n" );
document.write( "For this rule, the formula\r<BR>\n" );
document.write( "\n" );
document.write( "d=D(a+1)<BR>\n" );
document.write( "    24<BR>\n" );
document.write( "gives the child’s dosage d, where D is the adult dosage<BR>\n" );
document.write( "and a is the age of the child in years. If the adult dosage<BR>\n" );
document.write( "of a drug is 600 milligrams and a doctor uses this<BR>\n" );
document.write( "formula to determine that a child’s dosage is<BR>\n" );
document.write( "200 milligrams, then how old is the child?<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 #197013 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=197013\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Cowling’s rule. Cowling’s rule is another method for<BR>\n" );
document.write( "determining the dosage of a drug to prescribe to a child.<BR>\n" );
document.write( "For this rule, the formula <BR>\n" );
document.write( "d=D(a+1)<BR>\n" );
document.write( "   24<BR>\n" );
document.write( "---<BR>\n" );
document.write( "I am going to assume that 24 is the denominator of the right side.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "gives the child’s dosage d, where D is the adult dosage<BR>\n" );
document.write( "and a is the age of the child in years. <BR>\n" );
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document.write( "If the adult dosage of a drug is 600 milligrams and a doctor uses this<BR>\n" );
document.write( "formula to determine that a child’s dosage is 200 milligrams, then how <BR>\n" );
document.write( "old is the child?<BR>\n" );
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document.write( "200 = 600(a+1)/24<BR>\n" );
document.write( "Multiplying both sides by 24 you get:<BR>\n" );
document.write( "4800 = 600(a+1)<BR>\n" );
document.write( "Dividing both sides by 600 you get:<BR>\n" );
document.write( "8 = a+1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "So a = 7 yrs old<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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