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3 years ago

Reduce ratio to lowest form 50 : 35

Mathematics

2 answers:

ElenaW [278]3 years ago

6 0

Answer:

10/7

Step-by-step explanation:

divide both numbers by 5

Anika [276]3 years ago

3 0

7/10 or 10/7 because if you divide each number by 5 which is the largest number both numbers can be divided by you would get either answers.

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A recipe for cookies requires 2/3 cup of butter.Rama wants to make 3/4 of the recipe.how many cups of butter does she need to us

notsponge [240]

1 recipe = 2/3 cup of butter.

3/4 recipe = 3/4 x 2/3 = 1/2 cup of butter

Answer: 1/2 cup of butter

5 0

3 years ago

It cost $15 to enter apple farm and each apple is 0.25 writing equation in y=mx+b form to describe how much it'll cost one perso

postnew [5]

Answer:

Y=.25x+15

Step-by-step explanation:

Y is the total cost

15 is the set price

X is amount of apple that "will" be pick up ( Unknown apple that will be picked up so it is represented by X)

M is the price which is .25 per apple

6 0

3 years ago

6.Suppose the Gallup Organization wants to estimate the population proportion of those who think there should be a law that woul

drek231 [11]

Answer:

A sample of $n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2$ is needed, in which E is the desired margin of error, as a proportion. If we find a decimal value, we round up to the next whole number.

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 level of $1-\alpha$ , 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 $1 - \frac{\alpha}{2}$ .

The margin of error is of:

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

In a previous study of 1012 randomly chosen respondents, 374 said that there should be such a law.

This means that $n = 1012, \pi = \frac{374}{1012} = 0.3696$

95% confidence level

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

How large a sample size is needed to be 95% confident with a margin of error of E?

A sample size of n is needed, and n is found when M = E.

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

$E = 1.96\sqrt{\frac{0.3696*0.6304}{n}}$

$E\sqrt{n} = 1.96\sqrt{0.3696*0.6304}$

$\sqrt{n} = \frac{1.96\sqrt{0.3696*0.6304}}{E}$

$(\sqrt{n})^2 = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2$

$n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2$

A sample of $n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2$ is needed, in which E is the desired margin of error, as a proportion. If we find a decimal value, we round up to the next whole number.

4 0

3 years ago

5(wx-v)=9(x+v)<br> make x the subject

Zepler [3.9K]

Expand the brackets first
5(wx-v) = 9(x + v)
5wx - 5v = 9x + 9v

Get all x's on one side and everything on on the other side
9x - 5wx = 9v + 5v

factorise out the x
x(9-5w) = 14v

then divide by 9-5w
x = 14v/(9-5w)

3 0

3 years ago

Read 2 more answers

What is the volume of the cylinder below?

3241004551 [841]

Answer:

Step-by-step explanation:

It is C.

Volume-πr^2h

r-11

h-15

11^2*15

=1815π

6 0

3 years ago

Read 2 more answers

Reduce ratio to lowest form 50 : 35​

Reduce ratio to lowest form 50 : 35