document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1126666>Question 1126666</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangle has length 15 cm and width y cm. If its perimeter is more than 50 cm but less than 70 cm, find the range of values of y.<BR>\n" );
document.write( "A. 10 < y < 14<BR>\n" );
document.write( "B. 10 < y < 20<BR>\n" );
document.write( "C. 20 < y < 30<BR>\n" );
document.write( "D. 35 < y < 55 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #742984 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=742984\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=\"black\" face=\"times\" size=\"3\"><BR>\n" );
document.write( "P = perimeter of rectangle<BR>\n" );
document.write( "L = length = 15<BR>\n" );
document.write( "W = width = y<BR>\n" );
document.write( "P = 2*(L+W)<BR>\n" );
document.write( "P = 2*(15+y)<BR>\n" );
document.write( "P = 30+2y\r<BR>\n" );
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document.write( "Since the \"perimeter is more than 50\" we know that P > 50 or 50 < P. <BR>\n" );
document.write( "At the same time we're told that the perimeter is \"less than 70\", so P < 70.<BR>\n" );
document.write( "Combine 50 < P and P < 70 to get 50 < P < 70\r<BR>\n" );
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document.write( "50 < P < 70<BR>\n" );
document.write( "50 < 30+2y < 70 <font color=blue>Replace P with 30+2y</font><BR>\n" );
document.write( "50-30 < 30+2y-30 < 70-30 <font color=blue>subtract 30 from all sides</font><BR>\n" );
document.write( "20 < 2y < 40<BR>\n" );
document.write( "20/2 < 2y/2 < 40/2 <font color=blue>divide all sides by 2</font><BR>\n" );
document.write( "10 < y < 20\r<BR>\n" );
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document.write( "<font color=red> Answer: Choice B. 10 < y < 20 </font><BR>\n" );
document.write( "This means that y can be anything between 10 and 20 as long as it's not 10, and it's not 20 either. <BR>\n" );
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