Posted by Lois on Monday, March 28, 2011 at 11:29am.
Samantha has an average of 92% on tree math test. If one of her grades was 84% and the other is 93%, what was the grade of her third test?

math  PsyDAG, Monday, March 28, 2011 at 12:26pm
.92 = (.84 + .93 + x)/3
Solve for x.