document.write( "Question 196173: Certain number of students planed to go for a picnic. Tht total expense was estimated to be Rs.3600-. But 15 students could not go. Each student participated had to pay Rs.8/- more. Then howmany students participated in the picnic \n" ); document.write( "
Algebra.Com's Answer #147049 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! Let \n" ); document.write( "participated in the picnic. \n" ); document.write( "The expense of 3600 was based on \n" ); document.write( "students participating \n" ); document.write( "The cost per student would have been \n" ); document.write( "But now the cost per student is \n" ); document.write( "The difference between these costs is \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Complete the square: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Take the square root of both sides \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "75 students participated in the picnic \n" ); document.write( "check answer: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK \n" ); document.write( " |