Jay's mean score for four quizzes is 99. His scores for the first three quizzes are 88 , 55 , and 99. What is Jay's score
for the last quiz?
1 answer:
Answer: 154
Step-by-step explanation:
The mean is calculated by adding up all the numbers and dividing by the number of observations added up.
The above can therefore be expressed as:
(88 + 55 + 99 + x) / 4 = 99
242 + x = 99 * 4
242 + x = 396
x = 396 - 242
x = 154
You might be interested in
Answer:
15x - 4
Step-by-step explanation:
Add both of the equations together.
f(x) + g(x)
(3x + 10x) + (2x -4)
Then, combine like terms
3x + 2x + 10x = 15x
15x - 4
Answer:
y=x
Step-by-step explanation:
The graph is a line
The only function that is a line is
y=x
Answer: 10/3
Step-by-step explanation
2/3x5
2/3x5/1
Now goahead and multiply the top and bottom numbers
Answer:
-7/8 the first one
Step-by-step explanation:
they're both the same
