document.write( "Question 1208697: Going into the final exam, which will count as two tests, Jack has test scores 80, 83, 71, 61, and 95. What score does Jack need on the final in order to have an average score of 80?\r
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document.write( "My setup, which leads to the wrong answer, is this:\r
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document.write( "(80 + 83 + 71 + 61 + 95 + 2x)/6 = 80\r
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document.write( "Here, 2x = 2 tests. This is my understanding. I am wrong. \r
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document.write( "A. Why is my setup wrong? \r
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document.write( "B. If you were taking a test and came across this word problem, how would you break it down leading to the right equation or setup?
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Algebra.Com's Answer #847109 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Your setup equation is very close to being correct. \n" ); document.write( "The 6 in the denominator should be 7. \n" ); document.write( "This is because we basically have these test scores: {80, 83, 71, 61, 95, x, x} \n" ); document.write( "x shows up twice since the final counts as two tests. \n" ); document.write( " \n" ); document.write( " |