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
Olenka [21]
2 years ago
10

Rename 18/7 as a mixed number by dividing the numerator by the denominator

Mathematics
2 answers:
katrin2010 [14]2 years ago
5 0

Answer:

2 \frac{4}{7}

Step-by-step explanation:

its actually super easy when you have a decent explanation

find how many times the denominator(bottom number) fits into the numerator(top number)

in this case its twice, so 2

find the remainder by starting with the number the denominator gives you when it's in the numerator (14) and then count up to the numerator

in this case its 14... 15, 16, 17, 18, so there's a remainder of 4

we take the main number, 2. we take the remainder, 4, and put it over the original denominator, 7, so 4/7. we put them next to each other.

2 \frac{4}{7}

let me know if i explained that well enough or if there's any parts you need me to clarify!!

have a fantastic day <3

Elena-2011 [213]2 years ago
4 0
2 with 4/7 next to it :)
You might be interested in
If a = 3, what is the value of 2a2.<br><br>A. 6<br><br>B. 12<br>C. 18<br><br>D. 36<br>​
aivan3 [116]

Answer:

C.

Step-by-step explanation:

I got it correct good luck bye!

6 0
2 years ago
Read 2 more answers
Two times x is 8 more than y. The sum of x and two times y is 14. Write two equations and graph to find the value of y.
Sauron [17]

Option B: $y=4$ is the value of y

Explanation:

It is given that "Two times x is 8 more than y". Writing it as expression, we have,

2x=8+y

It is also given that "The sum of x and two times y is 14". Writing it as expression, we have,

x+2y=14

To find the value of y, let us solve the two equations using substitution method.

From the equation 2x=8+y , let us find the value of x.

x=\frac{8+y}{2}

x=\frac{8}{2} +\frac{y}{2}

x=4+\frac{y}{2}

Now, substituting x=4+\frac{y}{2} in the equation x+2y=14 , we get,

4+\frac{y}{2}+2y=14

      4+\frac{5y}{2} =14

            $\frac{5 y}{2}=10$

            5y=20

              $y=4$

Thus, the value of y is $y=4$

8 0
3 years ago
Which of the following points is between 2 and -3 on the number line?<br> -4 3 -2 -5
lions [1.4K]

Answer:

-2

Step-by-step explanation:

-5  -4  -3  <u>-2</u>  -1  0  1  2 3  4  5

3 0
3 years ago
A: 28, 23,30, 25, 27
Serggg [28]

Answer:

8

Step-by-step explanation:

mean of A=28+23+30+25+27/5 = 26.6

average of B=22+19+15+17+20/5 = 18.6

now,

difference= 26.6-18.6

=8,,

6 0
3 years ago
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these batteries follows the normal prob
Novay_Z [31]

Answer:

a) By the Central Limit Theorem, it is approximately normal.

b) The standard error of the distribution of the sample mean is 1.8333.

c) 0.1379 = 13.79% of the samples will have a mean useful life of more than 38 hours.

d) 0.7939 = 79.39% of the samples will have a mean useful life greater than 34.5 hours

e) 0.656 = 65.6% of the samples will have a mean useful life between 34.5 and 38 hours

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 36 hours and a standard deviation of 5.5 hours.

This means that \mu = 36, \sigma = 5.5

a. What can you say about the shape of the distribution of the sample mean?

By the Central Limit Theorem, it is approximately normal.

b. What is the standard error of the distribution of the sample mean? (Round your answer to 4 decimal places.)

Sample of 9 means that n = 9. So

s = \frac{\sigma}{\sqrt{n}} = \frac{5.5}{\sqrt{9}} = 1.8333

The standard error of the distribution of the sample mean is 1.8333.

c. What proportion of the samples will have a mean useful life of more than 38 hours?

This is 1 subtracted by the pvalue of Z when X = 38. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{38 - 36}{1.8333}

Z = 1.09

Z = 1.09 has a pvalue of 0.8621

1 - 0.8621 = 0.1379

0.1379 = 13.79% of the samples will have a mean useful life of more than 38 hours.

d. What proportion of the sample will have a mean useful life greater than 34.5 hours?

This is 1 subtracted by the pvalue of Z when X = 34.5. So

Z = \frac{X - \mu}{s}

Z = \frac{34.5 - 36}{1.8333}

Z = -0.82

Z = -0.82 has a pvalue of 0.2061.

1 - 0.2061 = 0.7939

0.7939 = 79.39% of the samples will have a mean useful life greater than 34.5 hours.

e. What proportion of the sample will have a mean useful life between 34.5 and 38 hours?

pvalue of Z when X = 38 subtracted by the pvalue of Z when X = 34.5. So

0.8621 - 0.2061 = 0.656

0.656 = 65.6% of the samples will have a mean useful life between 34.5 and 38 hours

4 0
3 years ago
Other questions:
  • Wat is 2 and 3 7ths divided by 7
    12·1 answer
  • Please i really need help
    6·1 answer
  • What is the factorization of 49b2 − 81? (7b – 9)(7b – 9) (7b – 9)(7b + 9) (7b2 – 9)(7b2 – 9) (7b2 – 9)(7b2 + 9)
    6·2 answers
  • TRANSFORMATI IN CENTIMETRI:20MM,60MM,300MM,670MM
    7·2 answers
  • a pipe is 30 feet long. it needs to be cut into pieces that are 2/3 feet long. how many pieces can be made from this pipe
    9·1 answer
  • Which measure is equivalent to 1.5 kg?
    7·2 answers
  • 3x+9=5x=21<br> Solve for x<br> Step by Step
    10·1 answer
  • 1) Find the quotient:<br>(2x4 - 3x2 - 1) = (x - 1)​
    12·1 answer
  • Vera went to the local salon to get a haircut. The cost was $24. Vera tipped the hair stylist 18%. What was the total cost of th
    15·2 answers
  • Which statement correctly describe the data shown in the scatter plot?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!