Question

I NEED help please!!!!!!!! GIVING FAN AND MEDAL!!!!

You are studying for your final exam of the semester. Up to this point, you receive 3 exam scores of 92%, 95% and 73%. To receive a grade A in the class, you must have an average exam score between 90% and 100% for all for exams including the final.

Find the widest range of scores that you can get on the final exam in order to get and A for the class. Use interval notation.

A) (96,97)
B) (92,100)
C) (100,100)

Answer 1

im not 100 percent sure but i think its b

Answer 2

I cant get it wrong or i fail:(

Answer 3

ill*

Answer 4

set inequality for average
the final test as x
do you know how?

Answer 5

No...:(

Answer 6

Okay! you have 4 exams to get A
we know the scores of the 3 exam, we are missing one
that one we are trying to find

Answer 7

now! we know that in order to get A your average has to be btw 90 to 100
right

Answer 8

right!

Answer 9

the way we do average is like this
first score+second score+ third score+firth score all divided by 4
so (92+95+73+x)/4
x is the score for the final exam that we don't know

Answer 10

65 right??

Answer 11

now we translate that word problem into algebra
90<= (92+95+73+x)/4<=100

Answer 12

No! you need to solve this inequality