1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Papessa [141]
1 year ago
5

Can anyone please help me with 8th grade math? I will give BRAIN!!!

Mathematics
1 answer:
Anit [1.1K]1 year ago
7 0

The given percentage scores are:

80 , 92 , 91 , 75 , 89 , 84 , 0 , 85

A. Calculate the average

So, the average = (sum of the scores)/(number of the scores)

Sum of the scores = 80 + 92 + 91 + 75 + 89 + 84 + 0 + 85 = 596

The number of the scores = 8

So,

The average = 596/8 = 74.5%

Does the average score really represent her abilities ?

No, because there is outlier which is ( 0 ) which mean it may be absent this test

the other scores are within 75 and 92

Which mean the average is less than the reasonable minimum score

====================================================================

B. Brandee received 78% at the missed test

so, we will find the new mean:

The new sum of the scores = 80 + 92 + 91 + 75 + 89 + 84 + 78 + 85 = 674

The new mean = 674/8 = 84.25%

====================================================================

C. What different did 0% score make ?

So, 0% give us not accurate representation of the student abilities

Does this new mean represent her abilities accurately ?

Yes

You might be interested in
Can someone help me? I’ll do anything
Temka [501]

To find x, we have to use the pythagorean theorem.

a^2 + b^2 = c^2.

In our problem,

a = 3

b = ?

c = 6.5

(3)^2 + b^2 = (6.5)^2

Simplify the left and right side.

9 + b^2 = 42.25.

Subtract 9 from each side

b^2 = 33.25.

Take the square root of each side

b = 5.8.

Multiply 5.8 by two becuase 5.8 is the radius and we are looking for the diameter

x = 11.6

8 0
3 years ago
Read 2 more answers
Item 11 Identify the independent and dependent variables. The equation c=0.09s gives the amount c (in dollars) of commission a s
diamong [38]

Answer:

C is dependent variable

S is independent variable

Step-by-step explanation:

Here, give the equation, we are told to identify the independent and the dependent variable

When we talk of the independent variable, it is that variable which values does not depend on whatever values the second variable in the equation has. It is that variable that is used to find the other variable in the equation

While the dependent variable depends on the values we input in the equation. It is the variable that we arrive at after plugging different values for the independent variable

now looking at the question, the equation we have is as follows;

c = 0.09s

To get the value of c which is the cost , we have to input different values of a. As is the amount in sales that we have that will yield the value of the commission to be received

Thus, we can categorically say that the values of the commission are dependent on the values we get from the sales

Hence, while commission represents the dependent variable, the values of the sales are the independent variables

6 0
3 years ago
Translate mathematical word sentence into written expression: a/2=9
Burka [1]

Answer:

a/2 = 9

  • <em>a</em> divided by 2 gives 9.
  • Half of<em> a </em>is equivalent to 9.
6 0
3 years ago
Which number is NOT in the solution set of x − 9 &gt; 3?<br> A) 11 <br> B) 13 <br> C) 15 <br> D) 17
densk [106]

Answer:

A

Step-by-step explanation:

Given

x - 9 > 3 ( add 9 to both sides )

x > 12

13, 15 and 17 are all greater than 12

However, 11 is less than 12 and is not in the solution set → A

7 0
3 years ago
Read 2 more answers
MATH-IXL , Look at the picture below to answer CORRECTLY.
s2008m [1.1K]

Answer: The slope of function A is greater than the slope of Function B:)

Step-by-step explanation:

Im sorry if I'm incorrect but: Both of the y intercepts would be -2. Though, I'm pretty sure Function A grows +5.

7 0
3 years ago
Other questions:
  • 15 POINTS
    15·1 answer
  • Sam has 60 friends 1/3 live on the same street as Sam. of those who live on the same street 2/5 have the same number of brothers
    14·2 answers
  • A person dives into the ocean and finds Object A at a depth of 9.8 meters. He records the
    13·1 answer
  • Help me with my math please
    6·1 answer
  • Guys pls help me.........
    11·1 answer
  • Expand and simplify<br>(x - 1)(2x + 3)​
    10·2 answers
  • What method can be used to prove triangles congruent?
    14·1 answer
  • 58 8.6 1.5.<br> What is the value of x in the figure<br> below?<br> I AM BEGGING YOU
    11·1 answer
  • This pattern follows the rule divide by 3, then add 7. What are the next two numbers?
    10·2 answers
  • Please help me with number 2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!