document.write( "Question 977072: in a bowling game adam scored an average score of 22 in first two attempts, 16 in his third attempt and 24 in his fourth attempt. what must he score in his fifth attempt to achieve an average score of 20 in all his 5 attempts?\r
\n" ); document.write( "\n" ); document.write( "the answer is 16 but i dont know why
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Algebra.Com's Answer #598585 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
(x1 + x2) / 2 = 22
\n" ); document.write( "x3 = 16
\n" ); document.write( "x4 = 24
\n" ); document.write( "(44 + 16 + 24 + x) / 5 = 20
\n" ); document.write( "note that x1 + x2 = 44
\n" ); document.write( "(44 + 16 + 24 + x) = 100
\n" ); document.write( "84 + x = 100
\n" ); document.write( "subtract 84 from both sides of =
\n" ); document.write( "x = 16, therefore
\n" ); document.write( "Adam must score a 16 in his fifth attempt to achieve an average score of 20 in all his 5 attempts.
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