document.write( "Question 1156174:
\n" ); document.write( "The mean of n numbers is 5.If the number 13 is now included with the n numbers the new mean is 6.Find the value of n.
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Algebra.Com's Answer #778858 by Boreal(15235)\"\" \"About 
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the total of n umbers is 5n
\n" ); document.write( "add 13 to that total and get 5n+13
\n" ); document.write( "divide that by n=1 and get 6
\n" ); document.write( "so (5n+13)/(n+1)=6
\n" ); document.write( "so 5n+13=6n+6
\n" ); document.write( "n=7 numbers ANSWER
\n" ); document.write( "7 * mean of 5=35 total
\n" ); document.write( "add 13 to that and get 48
\n" ); document.write( "divide by n+1 of 8 and get 6.
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