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omeli [17]
2 years ago
5

X=3G/2 rearrange to make g the subject

Mathematics
2 answers:
Alexandra [31]2 years ago
6 0
2x/3=g I think I’m not fully sure
andre [41]2 years ago
4 0

Answer:

2x/3 = G

Step-by-step explanation:

X=3G/2

2X= 3G

2X/3 = G

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40 percent of the students at rockledge middle school are musicians. 75 percent of those musicians have to read a sheet music wh
sweet-ann [11.9K]

Answer:


Step-by-step explanation:

40/100 musicians .75*40= 30


30 is to 100

as 38 is to x


30          38

----   =    ------              Cross multiply

100          x


30x=3800

divide by three to get

126 and 2/3

you can't split people, so it would be closer to about 127 students.


5 0
3 years ago
Can anyone help me with this problem?
olya-2409 [2.1K]

Answer:

a1

Step-by-step explanation:

Just add the numerators if both fractions to get: a + 1 = a1

6 0
1 year ago
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How to evaluate and simplify <br>​
Kobotan [32]

Answer:

depends.

Step-by-step explanation:

Evaluating a question depends on the question given. To simplify an answer, you need to find the simplest answer, this process also depends on what question you're given, for example, if you simplify 4/8 (four eighths), it would be 1/2 (one half).

6 0
3 years ago
Daniel drove 750 miles from his home to Texas. If x represents the number of hours Daniel drove, which expression could be
11111nata11111 [884]

Answer:750/x

Step-by-step explanation:

speed = distance ÷ time

= 750 ÷ x

4 0
3 years ago
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A museum conducts a survey of its visitors in order to assess the popularity of a device which
Natali5045456 [20]

Answer:

i:

The appropriate null hypothesis is H_0: p \geq 0.2

The appropriate alternative hypothesis is H_1: p < 0.2

The p-value of the test is 0.1057 > 0.05, which means that there is not sufficient evidence that fewer than 20% of the museum visitors make use of the device, and so, it should not be withdrawn.

ii:

The p-value of the test is 0.1057

Step-by-step explanation:

Question i:

The device will be withdrawn if fewer than 20% of all of the museum’s visitors make use of it.

At the null hypothesis, we test if the proportion is of at least 20%, that is:

H_0: p \geq 0.2

At the alternative hypothesis, we test if the proportion is less than 20%, that is:

H_1: p < 0.2

The test statistic is:

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

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.2 is tested at the null hypothesis:

This means that \mu = 0.2, \sigma = \sqrt{0.2*0.8} = \sqrt{0.16} = 0.4.

The device will be withdrawn if fewer than 20% of all of the museum’s visitors make use of it. Of a random sample of 100 visitors, 15 chose to use the device.

This means that n = 100, X = \frac{15}{100} = 0.15

Test statistic:

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

z = \frac{0.15 - 0.20}{\frac{0.4}{\sqrt{100}}}

z = -1.25

P-value of the test and decision:

The p-value of the test is the probability of finding a sample proportion below 0.15, which is the p-value of z = -1.25.

Looking at the z-table, z = -1.25 has a p-value of 0.1057.

The p-value of the test is 0.1057 > 0.05, which means that there is not sufficient evidence that fewer than 20% of the museum visitors make use of the device, and so, it should not be withdrawn.

Question ii:

The p-value of the test is 0.1057

7 0
3 years ago
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