document.write( "Question 945076: A student has scores of 87.75, 89, and 91 on his first three tests. He needs an average of at least 90 to earn a grade of A. What is the minimum score that the student needs on the fourth test to ensure a A? \n" ); document.write( "
Algebra.Com's Answer #576266 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
A student has scores of 87.75, 89, and 91 on his first three tests. He needs an average of at least 90 to earn a grade of A. What is the minimum score that the student needs on the fourth test to ensure a A?
\n" ); document.write( "***
\n" ); document.write( "\"%2887.75%2B89%2B91%2Bx%29%2F4=90\"
\n" ); document.write( "267.75+x=360
\n" ); document.write( "x=92.25
\n" ); document.write( "What is the minimum score that the student needs on the fourth test to ensure a A? 92.25
\n" ); document.write( "
\n" );