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jolli1 [7]
2 years ago
15

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?
Mathematics
1 answer:
Alik [6]2 years ago
3 0

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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Simplify the expression:<br> (1 + 6g)(3) =
Irina18 [472]

Answer:

3 + 18g

Step-by-step explanation:

(1+6g)(3)=

Begin by distributing the 3 to each of the terms, I like to re-write it like this before distributing to make sure I remember to multiply all the terms inside the parenthesis.

(3)(1+6g)

3 + 18g

Since we are just simplifying the problem and not solving it, you won't have a number for your answer. It's usually a smaller equation with at least one variable :)

7 0
3 years ago
What is the measure of a single interior angle in a 16-gon?
kvv77 [185]

The equation to find the interior angles of a regular polygon is S = (n - 2)*180/n, so you do 16-2=14, then multiply 14 by 180 to get 2520. You then divide that by 16 to get 157.5.

4 0
3 years ago
What ordered pair represents the number of feet Jorge walks in 3 steps ?
iris [78.8K]

We are given order pairs (x,y) as (Number of steps, Number of feet).

On the given graph, order pairs are :

(2,6)

(4,12)

(6,18)

(8,24)

(10,30).

We need to find the the number of feet Jorge walks in 3 steps.

<em>Rate of number of feet per number of step is (12-6)/(4-2) = 6/2 = 3.</em>

In order to find the number of feet Jorge walks in 3 steps, we need to multiply 3 by rate.

Therefore, 3 × 3 = 9.

<h3>Therefore, (3,9) ordered pair represents the number of feet Jorge walks in 3 steps.</h3>
8 0
3 years ago
Read 2 more answers
Need help with this.
givi [52]

Answer:

Step-by-step explanation:

You are supposed to pull out the common factor and put it outside the brackets.

42: 6 * 7

54: 6 * 9

So the answer is

6(9 + 7)

5 0
3 years ago
After adding an 8-pound box with 6 identical boxes, the crate weighed 72 boxes
damaskus [11]

After adding 8 students to each of 6 same-sized teams, there were 72 students altogether.

After adding an 8-pound box of tennis rackets to a crate with 6 identical boxes of ping pong paddles, the crate weighed 72 pounds.

The first situation has all equal parts, since additions are made to each team. An equation that represents this situation is 6( x + 8 ) = 72, where x represents the original number of students on each team. Eight students were added to each group, there are 6 groups, and there are a total of 72 students.

In the second situation, there are 6 equal parts added to one other part. An equation that represents this situation is 6x + 8 = 72, where x represents the weight of a box of ping pong paddles, there are 6 boxes of ping pong paddles, there is an additional box that weighs 8 pounds, and the crate weighs 72 pounds altogether.

In the first situation, there were 6 equal groups, and 8 students added to each group. 6( x + 8 ) = 72.

In the second situation, there were 6 equal groups, but 8 more pounds in addition to that. 6x + 8 = 72.

6 0
2 years ago
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