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
Verdich [7]
3 years ago
15

The mean score was 72. The standard deviation was 7 percentage-points. Based on this information, what is the best

Mathematics
1 answer:
fiasKO [112]3 years ago
5 0

Answer:

the number of student that took the test is missing

I think it is 100?

79 is 1 sigms (1 standard deviation) above the mean....

1 sd is 84% ... 16% are above the 79

multiply the students that took the test by .16

Step-by-step explanation:

You might be interested in
Find the quotient. 48j5k2 ÷ (-3j3k)
Sindrei [870]

Answer:

-16j²k

Step-by-step explanation:

3 0
4 years ago
Hich statement about the student's answer is correct?
jeka94
D.The answer should be about $10,000.The students answer is not correct.
7 0
3 years ago
A 10 2/3 inch long pipe is cut into 8 equal length pieces.how long is each piece?
quester [9]
The answer is 1.33333333
Rounded off to 1.34
3 0
3 years ago
Read 2 more answers
The area of a rectangle is 12x^2-8x-15. The width is (2x-3). What is the length of the rectangle?
Aliun [14]
The length of the rectangle is (6x+5)
4 0
3 years ago
0.2x + 1 = 1.6x + 3.1<br> What value of x satisfies the equation above?
guapka [62]

Answer:

x = -1.5

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

0.2x + 1 = 1.6x + 3.1

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 0.2x on both sides:          1 = 1.4x + 3.1
  2. Subtract 3.1 on both sides:             -2.1 = 1.4x
  3. Divide both sides by 1.4:                 -1.5 = x
  4. Rewrite:                                            x = -1.5

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitution:                    0.2(-1.5) + 1 = 1.6(-1.5) + 3.1
  2. Multiply:                           -0.3 + 1 = -2.4 + 3.1
  3. Add:                                 0.7 = 0.7
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the eighth letter in this question not Counting spaces? W is the first H is the second etc
    6·1 answer
  • The number of kilometers George ran is equal to the product of two odd integers. George May have run ? kilometers.
    7·1 answer
  • Jan has a 12 ounce milkshake. Four ounces in the milkshake are vanilla and the rest is chocolate.
    13·2 answers
  • Help me plsssssssssssssssss
    13·1 answer
  • 7)
    15·1 answer
  • Please someone answer! please hurry . i’ll give you the brainliest!! please
    13·1 answer
  • How many solutions does this have?​
    13·2 answers
  • Consider the equation and its solution.
    9·1 answer
  • Re write the quadratic function in standard form<br><br><br>y=6(x-3)^2+4
    9·1 answer
  • A triangle has a base of 4 m and a height of 3 m.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!