document.write( "Question 546041: to earn a B in a course a student must have a final average of 80. on the first three tests a student has scores of 76,74, and 78. what must the student earn on the fianl test to get a B in the course? \n" ); document.write( "
Algebra.Com's Answer #355847 by guitarheroguy(26)![]() ![]() You can put this solution on YOUR website! Okay, our numbers we have: \n" ); document.write( "76,74, and 78\r \n" ); document.write( "\n" ); document.write( "We just need to experiment with numbers.\r \n" ); document.write( "\n" ); document.write( "We'll say the student got a 92. Let's see their grade.\r \n" ); document.write( "\n" ); document.write( "76+74+78+92=320 \n" ); document.write( "320/4=80\r \n" ); document.write( "\n" ); document.write( "So.... The student would need a 92% to get a final grade of \"B\" in the course. \n" ); document.write( " |