document.write( "Question 1076269: we are doing mean mode median and all that and im stuck on this one
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document.write( "five sisters all do volunteer work. last month they did volunteer work for a mean of 16hours four of them worked fr 16, 18, 12, and 14 hours how many hours did the fifth sister work.
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document.write( "please help me i have been struggling with this \n" );
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Algebra.Com's Answer #690930 by addingup(3677)![]() ![]() You can put this solution on YOUR website! The mean is the average, it is the sum divided by the number of entries \n" ); document.write( "Here you have 5 entries: 16,18,12,14, and x. The unknown x is for the 5th sister. So you add them up and solve for x: \n" ); document.write( "16+18+12+14+x = 60+x now divide by 5: \n" ); document.write( "60+x/5 = 16 \n" ); document.write( "60+x = 80 \n" ); document.write( "x = 20 \n" ); document.write( "------------------------------------------- \n" ); document.write( "Check: \n" ); document.write( "(16+18+12+14+20)/5 = 16 \n" ); document.write( "80/5 = 16 Correct \n" ); document.write( ": \n" ); document.write( "John \n" ); document.write( " |