document.write( "Question 867768: the average (arithmetic mean) of 10 exam grades is 87.if the highest and lowest grades are removed from the set, the average of the remaining 8 exam grades is 90. what was the average of the 2 exam grades that were removed? \r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "circle A has a circumference of 4pi, and circle b has a circumference of 8pi. if the circles intersect at two points , what is a possible distance from the center of circle A to the center of circle B? \n" );
document.write( "
Algebra.Com's Answer #523194 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If the average of 10 scores is 87, then the sum of all 10 scores must be 10 times 87. Likewise, if the average of 8 of those scores is 90, the sum of those 8 scores must be 8 times 90. The sum of the two scores that were removed must be the sum of the 10 scores minus the sum of the 8 scores.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( "My calculator said it, I believe it, that settles it \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |