document.write( "Question 1183229: The average of m numbers is a and the average of n numbers is b. If the average of all the (m+n) numbers is k, what is the value of m? \n" ); document.write( "
Algebra.Com's Answer #813437 by math_helper(2461)![]() ![]() You can put this solution on YOUR website! You can write: \n" ); document.write( "Sum of first group of numbers is am \n" ); document.write( "Sum of 2nd group of numbers is bn \r \n" ); document.write( "\n" ); document.write( "Average of (m+n) numbers is therefore: (am+bn)/(m+n) = k \r \n" ); document.write( "\n" ); document.write( "Solving for m: \r \n" ); document.write( "\n" ); document.write( "m = (kn-bn) / (a-k) , \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |