document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1097743>Question 1097743</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Lebron is taking Calculus for Management, a class in which four tests are given. To get an A, he must average at least a 90 on the four tests. He got scores 89, 93, and 87 on the first three tests. What is the least he could score on the last test to earn an A in the class? (Express your answer as an inequality) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #712169 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=712169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> he has already scored 89 + 93 + 87\r<BR>\n" );
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document.write( "the sum of this is 269.\r<BR>\n" );
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document.write( "in order to average a 90, he needs to score a total of 4 * 90 = 360 on all 4 tests.\r<BR>\n" );
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document.write( "360 - 269 = 91.\r<BR>\n" );
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document.write( "he needs to score at least a 91 to get a 90 average on all 4 tests.\r<BR>\n" );
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document.write( "269 + 91 = 360\r<BR>\n" );
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document.write( "360 / 4 = 90\r<BR>\n" );
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document.write( "the general formula is sum of scores / number of tests = average score on each test.\r<BR>\n" );
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document.write( "from this formula, you can easily derive:\r<BR>\n" );
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document.write( "sum of scores = average score on each test * number of tests\r<BR>\n" );
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document.write( "when he gets a 91 on the last test, than the 4 individual scores are 89, 93, 87, 91.\r<BR>\n" );
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document.write( "add them up and you get a total of 360 for 4 scores.\r<BR>\n" );
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document.write( "average is 360 / 4 = 90.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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