document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=65533>Question 65533</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (38) Number problems. You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.\r<BR>\n" );
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document.write( "(54)Business and finance. If the inventor in exercise 53 charges $4 per unit, then her profit for producing and selling x units is given by the function.<BR>\n" );
document.write( "	P (x) = 2.25x –7000<BR>\n" );
document.write( "(a)	What is her profit if she sells 2000 units?<BR>\n" );
document.write( "(b)	What is her profit if she sells 5000 units?<BR>\n" );
document.write( "(c)	What is the break-even point for sales?\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #46099 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=46099\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have at least $30 in change in your drawer, consisting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer. <BR>\n" );
document.write( "Let \"d\" be the number of dimes and \"q\" be the number of quarters.<BR>\n" );
document.write( "Then the value of the dimes is 10d cents; Value of the quarters is 25q cents.<BR>\n" );
document.write( "INEQUALITY:<BR>\n" );
document.write( "10d+25q>=3000<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "(54)Business and finance. If the inventor in exercise 53 charges $4 per unit, then her profit for producing and selling x units is given by the function.<BR>\n" );
document.write( "P (x) = 2.25x –7000<BR>\n" );
document.write( "(a) What is her profit if she sells 2000 units?<BR>\n" );
document.write( "P(2000)= -$2500<BR>\n" );
document.write( "(b) What is her profit if she sells 5000 units?<BR>\n" );
document.write( "P(5000)=$4250<BR>\n" );
document.write( "(c) What is the break-even point for sales?<BR>\n" );
document.write( "The break-even point is P(x)=0<BR>\n" );
document.write( "If 2.25x-7000=0<BR>\n" );
document.write( "then x=7000/2.25=3111.11 units<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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