document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151899>Question 151899</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395977258/algebrahomeworkh>Algebra 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 1.Jay's test scores were 78,80,95, and 81. He took his last test for the quarter on Friday. What must he get to maintain a B average (between 80 and 89)\r<BR>\n" );
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document.write( "2. Ernie's average after 3 tests is at least 72%. If two of his test scores were 55 & 85, what could he have scored on his 3rd test?\r<BR>\n" );
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document.write( "3.Marissa has a square patio. She hires Ben to make it bigger. Ben uses 1'x1' tiles and increases the patio length 6' and doubles the patio's width. if the perimeter o the new patio is between 30' and 45', what could the dimensions of the original patio be?\r<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 #111687 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=111687\">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( "1) Jay's test scores were 78,80,95, and 81. He took his last test for the quarter on Friday. What must he get to maintain a B average (between 80 and 89) <BR>\n" );
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document.write( "Since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B ALIGN=MIDDLE  ALT=\"B\"   DISABLED_style= \"max-width:90%; height:auto;\" > average is bet. 80-89, we'll use the 80 average (minimum) for the eqn. Atleast if he gets higher than this is better right?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Test=T%5B1%5D ALIGN=MIDDLE  ALT=\"Test=T%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >, We'll do averaging,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28T%5B1%5D%2BT%5B2%5D%2BT%5B3%5D%2BT%5B5%5D%29%2F5=80 ALIGN=MIDDLE  ALT=\"%28T%5B1%5D%2BT%5B2%5D%2BT%5B3%5D%2BT%5B5%5D%29%2F5=80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2878%2B80%2B95%2B81%2BT%5B5%5D%29%2F5=80 ALIGN=MIDDLE  ALT=\"%2878%2B80%2B95%2B81%2BT%5B5%5D%29%2F5=80\"   DISABLED_style= \"max-width:90%; height:auto;\" >, adding & cross multiply:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=334%2BT%5B5%5D=5%2A80 ALIGN=MIDDLE  ALT=\"334%2BT%5B5%5D=5%2A80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%5B5%5D=400-334 ALIGN=MIDDLE  ALT=\"T%5B5%5D=400-334\"   DISABLED_style= \"max-width:90%; height:auto;\" > ----> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%5B5%5D=66 ALIGN=MIDDLE  ALT=\"T%5B5%5D=66\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---------> FINAL SCORE to get ave at least 80 and maintain <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B ALIGN=MIDDLE  ALT=\"B\"   DISABLED_style= \"max-width:90%; height:auto;\" > average.\r<BR>\n" );
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document.write( "2) Ernie's average after 3 tests is at least 72%. If two of his test scores were 55 & 85, what could he have scored on his 3rd test?\r<BR>\n" );
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document.write( "Same thing, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Averaging ALIGN=MIDDLE  ALT=\"Averaging\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28T%5B1%5D%2BT%5B2%5D%2BT%5B3%5D%29%2F3=72 ALIGN=MIDDLE  ALT=\"%28T%5B1%5D%2BT%5B2%5D%2BT%5B3%5D%29%2F3=72\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2855%2B85%2BT%5B3%5D%29%2F3=72 ALIGN=MIDDLE  ALT=\"%2855%2B85%2BT%5B3%5D%29%2F3=72\"   DISABLED_style= \"max-width:90%; height:auto;\" >, adding & cross multiply,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=140%2BT%5B3%5D=3%2A72 ALIGN=MIDDLE  ALT=\"140%2BT%5B3%5D=3%2A72\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%5B3%5D=216-140 ALIGN=MIDDLE  ALT=\"T%5B3%5D=216-140\"   DISABLED_style= \"max-width:90%; height:auto;\" > ----> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%5B3%5D=76 ALIGN=MIDDLE  ALT=\"T%5B3%5D=76\"   DISABLED_style= \"max-width:90%; height:auto;\" > ------> FINAL SCORE to get 72 AVERAGE.\r<BR>\n" );
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document.write( "3) If the square patio has <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X ALIGN=MIDDLE  ALT=\"X\"   DISABLED_style= \"max-width:90%; height:auto;\" > dimensions, the new dimensions now are:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Length=x%2B6 ALIGN=MIDDLE  ALT=\"Length=x%2B6\"   DISABLED_style= \"max-width:90%; height:auto;\" > ----------> increased by 6'<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Width=2x ALIGN=MIDDLE  ALT=\"Width=2x\"   DISABLED_style= \"max-width:90%; height:auto;\" > ------------> doubled<BR>\n" );
document.write( "This becomes a rectangle now since it has 2 diff dimensions.<BR>\n" );
document.write( "The <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=loophole ALIGN=MIDDLE  ALT=\"loophole\"   DISABLED_style= \"max-width:90%; height:auto;\" > with this you can get different orig. dimensions because the New Perimeter ranges from 30'-45'. Why? Simply we 'll base our computation in solving for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X ALIGN=MIDDLE  ALT=\"X\"   DISABLED_style= \"max-width:90%; height:auto;\" > for the New Perimeter.<BR>\n" );
document.write( "Okay, we'll pick the New Perimeter as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42ft ALIGN=MIDDLE  ALT=\"42ft\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2%28L%2BW%29 ALIGN=MIDDLE  ALT=\"P=2%28L%2BW%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42=2%28x%2B6%2B2x%29 ALIGN=MIDDLE  ALT=\"42=2%28x%2B6%2B2x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42=2%283x%2B6%29 ALIGN=MIDDLE  ALT=\"42=2%283x%2B6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > -------------> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42=6x%2B12 ALIGN=MIDDLE  ALT=\"42=6x%2B12\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---------> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42-12=6x ALIGN=MIDDLE  ALT=\"42-12=6x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%2830%295%2Fcross%286%29=cross%286%29x%2Fcross%286%29 ALIGN=MIDDLE  ALT=\"cross%2830%295%2Fcross%286%29=cross%286%29x%2Fcross%286%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=5ft ALIGN=MIDDLE  ALT=\"x=5ft\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "SIZE of the orig square patio is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5ftx5ft ALIGN=MIDDLE  ALT=\"5ftx5ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > based on the NEW PERIMETER of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42ft ALIGN=MIDDLE  ALT=\"42ft\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thank you,<BR>\n" );
document.write( "Jojo</font><BR>\n" );
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