Answer:
I can't tell u the answer but brackets always comes first.
3 because you have to take away 6 from both sides you have x=3 that is your answer 3
Answer:
ok and?
Step-by-step explanation:
To calculate the average you add up all the scores and divide by the number of scores (5)
add all the current test scores and allow X to be the unknown score:
92+80+88+93+X: or 353 + X
set up equation:
(353+X)
______ = 90
5
Multiply both side of the equation by 5 to clear the fraction resulting in:
353+X=450
Subtract 353 from both sides of the equation:
x = 97
So the test score needed to get a 90 average is 97.