document.write( "Question 1011936: Twenty students in a class play football and the remaining 10 play tennis. How many must change from tennis to football so that the percentage of the class which plays football is approximately 83%? \n" ); document.write( "
Algebra.Com's Answer #627757 by macston(5194) You can put this solution on YOUR website! . \n" ); document.write( "20 play football + 10 remaining = 30 total students \n" ); document.write( "(0.83)(30)=24.9 \n" ); document.write( ". \n" ); document.write( "For approximately 83% of 30 students to play football, \n" ); document.write( "25 students must play football. \n" ); document.write( "X=number of students who must change to football \n" ); document.write( ". \n" ); document.write( "20+X=25 \n" ); document.write( "X=5 \n" ); document.write( "ANSWER: Five students must change from tennis to football \n" ); document.write( "for the percentage playing football to be approximately 83%. \n" ); document.write( " |