document.write( "Question 205667: If the average of ten consecutive odd integers is 20, what is the average of the last five of those integers? Please show me how to do it. \n" ); document.write( "
Algebra.Com's Answer #155290 by RAY100(1637) ![]() You can put this solution on YOUR website! 1st integer,,,n,,,,,,,,,11 \n" ); document.write( "2nd integer,,,n+2,,,,,,,13 \n" ); document.write( "3rd integer,,,n+4,,,,,,,15,,,,,sum to 75,,,,,avg is 75/5 = 15 \n" ); document.write( "4th integer,,,n+6,,,,,,,17 \n" ); document.write( "5th integer,,,n+8,,,,,,,19 \n" ); document.write( ". \n" ); document.write( "6th integer,,,n+10,,,,,,21 \n" ); document.write( "7th integer,,,n+12,,,,,,23 \n" ); document.write( "8th integer,,,n+14,,,,,,25,,,,,,sum to 125,,,,,avg is 125/5=25 \n" ); document.write( "9th integer,,,n+16,,,,,,27 \n" ); document.write( "10th integer,,,n+18,,,,,,29 \n" ); document.write( ". \n" ); document.write( "TOTAL,,,,,,,,,10n +90,,,,,,,,,,,,,,,,,,,,,,,,,,,,,sum to 200 \n" ); document.write( ". \n" ); document.write( "If (10n +90)/10 =20,,,,,n+9 =20,,,,n=11 \n" ); document.write( ". \n" ); document.write( "substitute back in above \n" ); document.write( " |