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1 year ago

Action of Mixed Numbers

Mathematics

1 answer:

koban [17]1 year ago

3 0

Answer:

-8 hours/week

Step-by-step explanation:

Erik = 4 hours/week

Little Brother = 12 hours/week

How many more hours does Eric ride his bike during the week than his little brother?

Erik - Little Brother = (4 hrs/wk - 12 hrs/wk)

Erik rides his bike -8 hours/week more than his little brother.

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I am doing math how many equivalent fractions are there for 4/5 explain

mote1985 [20]

4/5 ,8/10, 16/20,
You multiply both numbers with the same number.
For ex. 4×2=8 5×2=10 so we have 8/10

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3 years ago

Felipe has a job transporting soft drinks by truck. his truck is filled with cans that weigh 14 ounces each and bottles that wei

Ray Of Light [21]

Hello,

Let x be the number of 14-ounce cans

800-x be the number of bottles

Total weight=14*x+70*(800-x)=14x+56000-70x=56000-56x=56(1000-x)

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2 years ago

How do you find the value of X

deff fn [24]

Answer:

look at the angles. they all ad up to 180 degrees devide that by 9, and there you go!

Step-by-step explanation:

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3 years ago

A table of values of a linear function is shown below. Find the output when the input is . Type your answer in the space provide

Tcecarenko [31]

Answer:

y=4n+2

really sorry if this aint right

Step-by-step explanation:

6 0

2 years ago

From a large number of actuarial exam scores, a random sample of scores is selected, and it is found that of these are passing s

Mnenie [13.5K]

<u>Supposing 60 out of 100 scores are passing scores</u>, the 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).

The lower limit is 0.5.
The upper limit is 0.7.

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

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

In which

z is the z-score that has a p-value of $\frac{1+\alpha}{2}$ .

60 out of 100 scores are passing scores, hence $n = 100, \pi = \frac{60}{100} = 0.6$

95% confidence level

So $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so $z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 - 1.96\sqrt{\frac{0.6(0.4)}{100}} = 0.5$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 + 1.96\sqrt{\frac{0.6(0.4)}{100}} = 0.7$

The 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).

The lower limit is 0.5.
The upper limit is 0.7.

A similar problem is given at brainly.com/question/16807970

5 0

2 years ago