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 89% final course grade?

90%

95%

94%

93%

Answer 1

93%

Answer 2

Solve the following for x:\[\frac{82.5+94.7+ 87.9+x}{4}=89\]
x = 90.9 or 91 rounded to the nearest unit.

Answer 3

and if those are the choices, the lowest one above 90.9 is 93%