Question

Janice has test scores 96, 84, 88, and 94. her score for homework is 100 and is weighted as a test grade. she still needs to take the final exam. What score does she need on the final exam to average atleast a 90.

Answer 1

Janice needs at least a 78 on the final exam

`(96 + 84 + 88 + 94 + 100 + x)/(6)`

If x was 78, average is 90.

If x was 77, average would be an 89.83

Answer 2

80

96+84+88+94+100+80=542

542/6(the number of grades)=90.33 (infinite)