Is 3/12 or 5/8 equivalent to 3/4 pls hurry its timed

Mathematics

2 answers:

Mariulka [41]3 years ago

4 0

Answer:

3/4 is equivalent to neither of these fractions.

Step-by-step explanation: Examples of equivalent fractions for 3/4 from lowest to greatest include 6/8, 9/12, 12/16, 15/20, 18/24 and so on. And you can use cross multiplication for each one to see if it is equivalent or not. As you can see, 3/12 and 5/8 are not equal to 3/4. Hope this helps ^-^.

mojhsa [17]3 years ago

3 0

Answer:

Step-by-step explanation:

to be equivalent both numbers have to be multiplied pr divided by the same number.

to get to 5/8 you can multiply 4x2 but 3x2 equals 6

So to be equal it would have to be 6/8

To get to 3/12 you can multiply 4 by 3 but 3*3= 9

So to be equal it has to be 9/12

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yarga [219]

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1.8 + n = 2.85
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Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$