document.write( "Question 268870: A student in an algebra class has test scores 65, 92, 61, and 94. What score on the next test will raise the student's average to 80? \n" ); document.write( "
Algebra.Com's Answer #197016 by vksarvepalli(154)![]() ![]() You can put this solution on YOUR website! let the score in the next test be x\r \n" ); document.write( "\n" ); document.write( "so for the average to be 80 \r \n" ); document.write( "\n" ); document.write( " (65+92+61+94+x)/5 = 80\r \n" ); document.write( "\n" ); document.write( "=> 312+x=400\r \n" ); document.write( "\n" ); document.write( "=> x=88\r \n" ); document.write( "\n" ); document.write( "so the student should get 88 in the next test to have his average 80 \n" ); document.write( " |