document.write( "Question 548470: The average (arithmetic mean) of the test scores of Mrs. Hilgarts's first period class of x Algebra 2 students is 74. The average of the test scores of Mrs. Hilgart's fifth period class of y Alegbra 2 students is 88. When the scores of both classes are combined, the average is 76. What is the vlaue of x/y? \n" ); document.write( "
Algebra.Com's Answer #357014 by stanbon(75887) ![]() You can put this solution on YOUR website! The average (arithmetic mean) of the test scores of Mrs. Hilgarts's first period class of x Algebra 2 students is 74. \n" ); document.write( "Total points = 74x \n" ); document.write( "------------------------------- \n" ); document.write( "The average of the test scores of Mrs. Hilgart's fifth period class of y Alegbra 2 students is 88. \n" ); document.write( "Total points = 88y \n" ); document.write( "-------------------------------- \n" ); document.write( " When the scores of both classes are combined, the average is 76. What is the value of x/y?\r \n" ); document.write( "\n" ); document.write( "Total points is (x+y)76 \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "points + points = total points \n" ); document.write( "74x+88y = 76x+76y \n" ); document.write( "2x = 12y \n" ); document.write( "x/y = 6 \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |