Question

Frank’s quarter grades are 82.5, 94.7, and 87.9. What grade, rounded to the nearest percent, will Frank have to earn in the last quarter to receive at least a 90% final course grade? hellppp

Answer 1

Let the last quarter grade = g
\[\frac{82.5+94.7+87.9+g}{4}\ge90\]
Now you just need to solve the inequality for g. Can you do that?

Answer 2

yea thanks @kropot72

Answer 3

You're welcome :)

Answer 4

I dont get it!!

Answer 5

\[265.1+g \ge360\]
\[g \ge360-265.1\]

Answer 6

okay

Answer 7

Glad you understand :)