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barxatty [35]
3 years ago
5

Divide 240kg into the ratio 1 : 2 : 5

Mathematics
1 answer:
Anarel [89]3 years ago
3 0
Ration 1:2:5 then 1+2+5 = 8
you would divide 240 equally to 8
240/8 = 30

first share: 30
2nd share: 30*2 = 60
3rd share: 30 *5 = 150

Double check: 30 +60 + 150 = 240
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If their food and beverages costs$25.30 and there is an 8% meals tax, how much is the bill
Mashutka [201]
Hey there Unrazed90,

Answer : 

100% = $25.30
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Hope this helps :D

<em>~Natasha ♥</em>
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3 years ago
Determine the sample size needed to construct a 99​% confidence interval to estimate the average GPA for the student population
Volgvan

Answer: n = 14

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Where σ = population standard deviation = 1

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We are to construct a 99% confidence interval, hence the level of significance is 1%.

The critical value for 2 tailed test at 1% level of significance is gotten from a standard normal distribution table which is 2.58

Margin of error = 0.7

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0.7 = 2.58/√n

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0.7×√n = 2.58

By squaring both sides

0.7^2 × n = 2.58^2

0.49 × n = 6.6564

n = 6.6564/0.49

n = 14

3 0
3 years ago
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just olya [345]

Answer

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Step-by-step explanation:

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2 years ago
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