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Greeley [361]
3 years ago
13

Which models show 60%? Check all that apply.

Mathematics
2 answers:
professor190 [17]3 years ago
8 0

Answer:

the first and the last option

Step-by-step explanation:

In the first option 3/5 of the rectangle are filled in. if you divide 3 by 5, you will get 0.6, which when converted in to percent is equal to 60%

3/5 = 0.6

0.6 = 60%

*to convert decimals into percent, you just have to move the decimal point 2 places to the right and add the present sign*

in the second option 5 out of the 10 rectangles inside the square are filled in. that means that 5/10 of the square are filled in, the model shows 50%

5/10 = 1/2 = 0.5 = 50%

in the third model 6 out of the 10 rows in the square are filled in. that means that 6/10 of the square are filled in which is equal to 60%

6/10 = 0.6 = 60%

hope this helps! if you have any questions, let me know!

goldfiish [28.3K]3 years ago
6 0

Answer:

OPTION A AND B.

AS OPTION A IS 3/5=6/10=60%

Option C=60/100=60%

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In a large sample of customer accounts, a utility company determined that the average number of days between when a bill was sen
vaieri [72.5K]

Answer:

Approximately 95% of the numbers of days will be between 26 and 58.

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 42

Standard Deviation, σ = 8

We are given that the distribution of average number of days between a bill is a bell shaped distribution that is a normal distribution.

Empirical Formula:

  • According to Empirical formula almost all the data lies within three standard deviation of man for a normal distribution.
  • Almost 68% of data lies within 1 standard deviation of mean.
  • Almost 95% of data lies within two standard deviation of mean.
  • Almost 99.7% of data lies within three standard deviation of mean.

Thus, by Empirical formula 95% of data lies within two standard deviation.

\mu \pm 2(\sigma) \\=42 \pm 2(8)\\=42 \pm 16\\=(26, 58)

Thus, approximately 95% of the numbers of days will be between 26 and 58.

8 0
3 years ago
Select all points on the line with a slope of -1/2 that go through the point (4,-1)
Harrizon [31]

Answer: (-4,4)  (4, 6).

Step-by-step explanation:

Use a graph to test it

7 0
3 years ago
Read 2 more answers
Is 2.164213562 Rational or Irrational
qwelly [4]
The number you said is rational but im not that sure
8 0
3 years ago
Help me to solve this
BartSMP [9]

Step-by-step explanation:

first we use Pythagoras to get t :

c² = a² + b²

with c being the Hypotenuse.

so,

t² = r² + s² = 10² + 31² = 100 + 961 = 1061

t = sqrt(1061)

and then we use the law of sine :

a/sin(A) = b/sin(B) = c/sin(C)

with the angles being opposite of their related sides.

so, r/sin(R) = t/sin(T) = t/sin(90) = t/1 = t

sin(R) = r/t = 10/sqrt(1061) = 0.30700278...

R = 17.8786966... ≈ 17.9°

4 0
3 years ago
3. What is the greatest common factor of 15 and 30? *
Vesna [10]

Answer:

15..

Step-by-step explanation:

3 0
3 years ago
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