All categories

3 years ago

Abby test scores were 95 82 78 and 88 is the estimate of her average test score 90 85 70 75

Mathematics

1 answer:

nataly862011 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

Given data

Abby test scores 95, 82, 78, 88

We see that the number of test

n is 4

Hence the average test score is

Average score = ∑scores/n

Average score = 95+82+78+88/4

Average score = 343/4= 85.75

≈ the average test score is 85

You might be interested in

Consider the two expressions 4b(b+1) and (2b+7)(2b-8). Compare their values if b=-3, b=-2, and if b=10. Is it true that for an v

frutty [35]

Answer:

FIRST EXPRESSION:

- If $b=-3$ , the value of $4b(b+1)$ is $24$

- If $b=-2$ , the value of $4b(b+1)$ is $8$

- If $b=10$ , the value of $4b(b+1)$ is $440$

SECOND EXPRESSION:

- If $b=-3$ , the value of $(2b+7)(2b-8))$ is $-14$

- If $b=-2$ , the value of $(2b+7)(2b-8))$ is $-36$

- If $b=10$ , the value of $(2b+7)(2b-8))$ is $324$

Yes, for any value of "b" the value of the first expression is greater than the value of the second expression.

Step-by-step explanation:

Substitute the given values of "b" into each expression and evaluate.

- For the first expression $4b(b+1)$ , you get:

If $b=-3$ → $4(-3)(-3+1)=24$

If $b=-2$ → $4(-2)(-2+1)=8$

If $b=10$ → $4(10)(10+1)=440$

- For the second expression $(2b+7)(2b-8))$ , you get:

If $b=-3$ → $(2(-3)+7)(2(-3)-8)=-14$

If $b=-2$ → $(2(-2)+7)(2(-2)-8)=-36$

If $b=10$ → $(2(10)+7)(2(10)-8)=324$

You can observe that for any value of "b" the value of the first expression is greater than the value of the second expression.

7 0

3 years ago

If i run a 5.31 second in 40 meter what would i run in a 40 yard dash

-Dominant- [34]

Answer:

im not sure , sorry... i wish i could have helped

5 0

3 years ago

By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%?

il63 [147K]

The answer is 66.6666%

3 0

3 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST TO CORRECT ANSWER

Svet_ta [14]

180 students have a pet

3 0

2 years ago

How do I find the value of x for a triangle

siniylev [52]

Answer:

a+b+c=180

Step-by-step explanation:

If you already have the first 2 values, add them together and subtract that number from 180. The total of all angles added together should always equal 180.

7 0

3 years ago