In her seventh grade pre-algebra class, Ms. Cornelius gave a standardized exam prepared by the district math department. Student
s' scores on the exam were as follows:
100, 98, 98, 96, 96, 96, 94, 92, 88, 82.
What is the mean score?
1 answer:
Answer: 94
Step-by-step explanation:
The mean is the average of the numbers,
To find the mean add all the numbers and divide by how many numbers there are i.e count the numbers
In this case lets find the sum;
Sum = 100 + 98 + 98 +96 + 96 + 96 + 94 + 92 + 88 + 82
= 940
Count the numbers : There are 10 numbers in total.
Therefore, The mean = 940/10
= 94
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Answer:
y = -10
Step-by-step explanation:
(-7x+3y) - (-7x +10y) =-65 -(-135)
-7x + 3y + 7x -10y = 70
-7y = 70
y = -10
Answer:
false
Step-by-step explanation:
You put all the numbers on one side of the equation and letters on another.
0.25r + 0.5r - r = 0.5 +0.125
-0.75r = 0.625 divide both sides by -0.75
r = -0.125
I think 7 mi is the answer
11. h(3)= 137 is the answer to the equation.
