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maxonik [38]
3 years ago
8

2 is what percent of 20?

Mathematics
2 answers:
MAXImum [283]3 years ago
5 0
0.4 or 0.40 should be the answer
ale4655 [162]3 years ago
4 0
It would be 5% of 20.
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Almira earns $50 an hour. How much does she earn in 6 hours. Write a function notation for this situation
spayn [35]
Hey there,
1 hours = $ 50 
6 hours = $ 50 x 6
             = $300

Hope this helps :))

<em>~Top♥</em>
5 0
4 years ago
Please help with problem number 28. It's geometry.
Sindrei [870]
It's geometry, help him with a problem number of 28 please.
3 0
3 years ago
The fraction of defective integrated circuits produced in a photolithography process is being studied. A random sample of 300 ci
Olenka [21]

Answer:

The correct answer is

(0.0128, 0.0532)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}

For this problem, we have that:

In a random sample of 300 circuits, 10 are defective. This means that n = 300 and \pi = \frac{10}{300} = 0.033

Calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool.

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{300}} = 0.033 - 1.96\sqrt{\frac{0.033*0.967}{300}} = 0.0128

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{300}} = 0.033 + 1.96\sqrt{\frac{0.033*0.967}{300}} = 0.0532

The correct answer is

(0.0128, 0.0532)

4 0
3 years ago
Convert 4 yards to inches.<br>A. 144 inches <br>B. 12 inches<br>C. 16 inches <br>D. 192 inches ​
Murrr4er [49]

Answer:

The answer is A. 144 Inches

Step-by-step explanation:

In one yard, there are 36 inches. You multiply the length value by 36.

4x36=144

Hope this helps, please mark brainliest if possible (:

8 0
3 years ago
Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 25 cards, which was 20% of the cards sold for
Rina8888 [55]

Answer:

125 cards

Step-by-step explanation:

20% = 0.2= 1/5

So because 25 is 1/5 0f the total number cards multiply 25 by 4 to get the other 80% and add the first 25 cards to that number.

(25 x 4) + 25= ?

100 + 25 = 125

therefore 125 cards were sold.

8 0
2 years ago
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