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
kupik [55]
3 years ago
11

HELP NEEDED !!!!

Mathematics
1 answer:
Fofino [41]3 years ago
7 0
The answer is Letter D - 84%

68% of the data is within +/- 1 SD from the mean = 59 to 7195% of the data is within +/- 2 SDs from the mean = 53 to 7799.7% of the data is within +/- 3 SDs from the mean = 47 to 83

The whole 68% (59 - 71) scored below 71. Since the data are evenly distributed, we'll get the 32% (100 - 68) outside the range of 68% and divide it by 2 and add the quotient to the original 68% so that we'll get the total data below 71.
   100 - 68 = 32
   32 / 2 = 16
   16 + 68 = 84
You might be interested in
Using the slope​ formula, find the slope of the line through the given points.
UNO [17]

Answer:

0

Step-by-step explanation:

Slope = (y2-y1)/(x2-x1)

  = (-5--5)/ (9--8)

 = (-5+5)/(9+8)

 = 0/17

=0

The slope it 0

This is a horizontal line because the y value doesn't change.  If the y value doesn't change, the slope it zero.

4 0
3 years ago
Victoria has $2.90 in quarters, dimes and nickels. The numbers of nickels is one more than six times the number of quarters, and
maria [59]

Answer:

Step-by-step explanation:

She has 290 cents.

Nickels: 6x+1

Quarters: x

Dimes: 4x

Now that we've converted it algebraically, we can add them

6x+1 + x + 4x = 11x+1 = 290

11x = 289

x = 289/11

let me know if incorrect, i will fix

8 0
3 years ago
5x + 7 - 2(-8x -1) = 7(x - 1)
love history [14]

Step-by-step explanation:

5x + 7 - 2( - 8x - 1) = 7(x - 1)  \\ 5x + 7 + 16x + 2 = 7x - 7 \\ collecting \:  like \:  \: terms \:  \\ 5x + 16x - 7x =  - 7 - 2 - 7 \\ 14x =  - 16 \\ divide \: both \: side \: by \: 14 \\  \frac{14x}{14}  =  \frac{ - 16}{14}  \\ x =   - \frac{ 8}{7}

8 0
3 years ago
Which term defines a frequent change in a person's emotional state?
soldi70 [24.7K]
Mood swing is the answer
3 0
3 years ago
6. Write 120% as a fraction.
DerKrebs [107]

Answer:

6/5 or 1 1/5

Step-by-step explanation:

120% = 120 / 100

4 0
3 years ago
Read 2 more answers
Other questions:
  • Anais bought 3 1/2 yards of ribbon. She had 2 feet 10 inches of ribbon left after trimming some curtains. How many inches of rib
    8·1 answer
  • Jordan enters 3.4 x6.8 into his calculator. He writes the digits 2312 from the display and forgets the decimal point. Where shou
    11·1 answer
  • What is the answer ?
    7·2 answers
  • Which of the following best describes how to use of the addition property of equality to isolate the variable x below?. . 5 = x
    10·1 answer
  • Solve the problem please
    10·2 answers
  • Solve the equation: 3^3x-8=81 PLZ HELPPPP
    6·1 answer
  • Find the area of this prism.
    6·1 answer
  • Robin has a collection of dimes, nickels and quarters. He has 4 times as many dimes as nickels. He has 20 more quarters than nic
    6·1 answer
  • How would 5,000,000,000 + 70,000,000 + 70,000 + 700 + 8 be written in standard form?
    8·1 answer
  • Can you guys help me out for my math test <br> on usa test prep
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!