document.write( "Question 1208352: Going into the final exam, which will count as 2/3 of the final grade, Larry has test scores of 86, 80, 84, and 90. What score does Larry need on the final exam in order to earn a B, which requires an average score of 80? What does he need to earn an A, which requires an average score of 90?\r
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\n" ); document.write( "\n" ); document.write( "To Earn a B:\r
\n" ); document.write( "\n" ); document.write( "(86 + 80 + 84 + 90 + B)/5 = 80\r
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Algebra.Com's Answer #846714 by mccravyedwin(408) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "No, Larry's exam counts 2/3 and Larry's present average counts only 1/3.\r\n" );
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document.write( "Let x = the score Larry would need to make to just barely have a final score \r\n" );
document.write( "of 90, so he could make an A.\r\n" );
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document.write( "First, find Larry's present average.  \r\n" );
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document.write( "Then substitute and solve the equation\r\n" );
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document.write( "Multiply through by 3\r\n" );
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document.write( "So Larry would need to make at least 92.5 on his exam to get an A.\r\n" );
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document.write( "Now you do the same to figure what Larry would need to make on his exam\r\n" );
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document.write( "to just barely get a B.\r\n" );
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document.write( "Edwin

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