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anyanavicka [17]

3 years ago

14

What is 7/8 x c for c=8

2 answers:

Umnica [9.8K]3 years ago

7 0

Answer:

Value is 7

Step-by-step explanation:

We are given the expression, $\frac{7}{8}\times c$ .

It is required to evaluate the expression for c= 8.

So, after substituting the value of c= 8 in the given expression, we get,

$\frac{7}{8}\times c$ = $\frac{7}{8}\times 8$ = 7

Hence, the value of the expression at c= 8 is 7.

Mademuasel [1]3 years ago

6 0

<span><u><em>Answer:</em></u>
7

<u><em>Explanation:</em></u>
<u>We are given the equation:</u>
</span> $\frac{7}{8}$ <span> * c

We want to get the value of the equation at <u>c = 8</u>.
Therefore, all we have to do is <u>substitute c in the equation with 8 and solve</u> as follows:
</span> $\frac{7}{8}$ <span> * 8

= </span> $\frac{7*8}{8}$
<span>
The 8 in the numerator will be cancelled out with the 8 in the denominator leaving us with only the <u>7 as a solution</u>

Hope this helps :)</span>

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Is 5/8 more than 11/20

alexdok [17]

5/8 is more than 11/20

If we find the lower common multiple of the denominators which is 160 then we can multiply the top numerators by the opposite denominators

5x20=100
11x8=88

We now have
$\frac{100}{160} and \frac{88}{160}$

The one on the left is simplified to 5/8 and the right is simplified to 11/20

5 0

3 years ago

Read 2 more answers

A simple random sample of size nequals81 is obtained from a population with mu equals 83 and sigma equals 27. (a) Describe the

Ivanshal [37]

Answer:

a) $\bar X \sim N (\mu, \frac{\sigma}{\sqrt{n}})$

With:

$\mu_{\bar X}= 83$

$\sigma_{\bar X}=\frac{27}{\sqrt{81}}= 3$

b) $z= \frac{89-83}{\frac{27}{\sqrt{81}}}= 2$

$P(Z>2) = 1-P(Z$

c) $z= \frac{75.65-83}{\frac{27}{\sqrt{81}}}= -2.45$

$P(Z$

d) $z= \frac{89.3-83}{\frac{27}{\sqrt{81}}}= 2.1$

$z= \frac{79.4-83}{\frac{27}{\sqrt{81}}}= -1.2$

$P(-1.2$

Step-by-step explanation:

For this case we know the following propoertis for the random variable X

$\mu = 83, \sigma = 27$

We select a sample size of n = 81

Part a

Since the sample size is large enough we can use the central limit distribution and the distribution for the sampel mean on this case would be:

$\bar X \sim N (\mu, \frac{\sigma}{\sqrt{n}})$

With:

$\mu_{\bar X}= 83$

$\sigma_{\bar X}=\frac{27}{\sqrt{81}}= 3$

Part b

We want this probability:

$P(\bar X>89)$

We can use the z score formula given by:

$z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for 89 we got:

$z= \frac{89-83}{\frac{27}{\sqrt{81}}}= 2$

$P(Z>2) = 1-P(Z$

Part c

$P(\bar X$

We can use the z score formula given by:

$z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for 75.65 we got:

$z= \frac{75.65-83}{\frac{27}{\sqrt{81}}}= -2.45$

$P(Z$

Part d

We want this probability:

$P(79.4 < \bar X < 89.3)$

We find the z scores:

$z= \frac{89.3-83}{\frac{27}{\sqrt{81}}}= 2.1$

$z= \frac{79.4-83}{\frac{27}{\sqrt{81}}}= -1.2$

$P(-1.2$

8 0

3 years ago

Can some one answer this Answer please?

solmaris [256]

Answer
40
Explanation
It’s 40 because if you do 20/3 x 2/2 you will get 40/6

3 0

3 years ago

29×5/6 how do you solve it

frutty [35]

Is the whole thing divided by 6 or just the 5?

7 0

3 years ago

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How to solve this problem?

cluponka [151]

have you tried 42 because it's a 90 degree triangle and 30+18+42 equals 90

7 0

3 years ago