Question 949352

Katherine needs an overall grade of 85 in her math class to be qualified for an additional class.  Her math grade is based on 6 exams.  Her first five grades were 87, 81, 85, 90, 78.  Write an inequality that represents her predicament.  What score does she need to qualify?
<pre>
Let final grade she needs, be G
Inequality representing her predicament: {{{highlight_green((87 + 81 + 85 + 90 + 78 + G)/6 >= 85))}}}
Solve the above to determine what grade she needs.