document.write( "Question 67705: A) In a set of test scores, nine scores are above the 40th percentile. How many test scores are in this set.\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "B) Nine students scored 75 or less on a mathematics test. If 75 is the 25th percentile, what is the number of students who took this test. \n" );
document.write( "
Algebra.Com's Answer #48169 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A) In a set of test scores, nine scores are above the 40th percentile. How many test scores are in this set. \n" ); document.write( "------- \n" ); document.write( "If 40% are below the given score, 60% must be above it. \n" ); document.write( "EQUATION: \n" ); document.write( "Let x be the total number of scores. \n" ); document.write( "0.60x=9 \n" ); document.write( "x=15 (this is the total number of scores) \n" ); document.write( "------------------ \r \n" ); document.write( "\n" ); document.write( "B) Nine students scored 75 or less on a mathematics test. If 75 is the 25th percentile, what is the number of students who took this test. \n" ); document.write( "-------------- \n" ); document.write( "Let x be the total number of students. \n" ); document.write( "0.25x=9 \n" ); document.write( "x=36 (total number of students) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |