document.write( "Question 741665: the average of four numbers is 82. when the fifth number was added the average became 83 what is the fifth number? \n" ); document.write( "
Algebra.Com's Answer #457610 by tommyt3rd(5050)\"\" \"About 
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(4/5)82+(1/5)x=83\r
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\n" ); document.write( "\n" ); document.write( "which leads us to x=91\r
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