document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=215077>Question 215077</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780495017028/algebrahomeworkh>finite mathematics</A><BR>\n" );
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document.write( "The total weekly revenue earned at Royal Ruby Retailers is given by following function where p is the price RRR charges per ruby. Use this function to determine: First, the weekly revenue to the nearest dollar, when the price is set at $20/ruby; Second, find the weekly revenue, to the nearest dollar, when the price is set at $200/ruby; Third, find the price RRR should charge in order to obtain a weekly revenue of $1200. (if you get negative answers do not assume that it is wrong!)\r<BR>\n" );
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document.write( "R(p) = - 4/3 p^2 + 80p\r<BR>\n" );
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document.write( "The weekly revenue when the price is set at $20/ruby is $.\r<BR>\n" );
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document.write( "The weekly revenue when the price is set at $200/ruby is $.\r<BR>\n" );
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document.write( "RRR should charge $ per ruby to obtain a weekly revenue. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #162546 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=162546\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> R(p) = - 4/3 p^2 + 80p<BR>\n" );
document.write( "R(20)=-4/3*20^2+80*20<BR>\n" );
document.write( "R(20)=-4/3*400+1600<BR>\n" );
document.write( "R(20)=-1,600/3+1,600<BR>\n" );
document.write( "R(20)=-533.33+1,600<BR>\n" );
document.write( "R(20)=$1,067 WEEKLY REVENUE WHEN RUBYS ARE $20.<BR>\n" );
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document.write( "R(200)=-4/3*200^2+80*200<BR>\n" );
document.write( "R(200)=-4/3*40,000+16,000<BR>\n" );
document.write( "R(200)=-160,000/3+16,000<BR>\n" );
document.write( "R(200)=-53,333+16,000<BR>\n" );
document.write( "R(200)=-$37,333 WEEKLY LOSS WHEN RUBYS ARE $200.<BR>\n" );
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document.write( "1,200=-4/3P^2+80P<BR>\n" );
document.write( "4P^2/3-80P+1200=0<BR>\n" );
document.write( "4P^2-240P+3600=0<BR>\n" );
document.write( "4(P^2-60P+900)=0<BR>\n" );
document.write( "4(P-30)(P-30)=0<BR>\n" );
document.write( "P-30=0<BR>\n" );
document.write( "P=$30 IS THE RUBY PRICE TO OBTAIN A WEEKLY REVENUE OF $1,200.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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