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lord [1]
3 years ago
15

3 bananas and 1 apple cost £2.45 1 apple costs £0.35 How much does 1 banana cost?

Mathematics
2 answers:
krok68 [10]3 years ago
4 0
$2.10 hope this helps
Citrus2011 [14]3 years ago
3 0

Answer:

£O.7

Step-by-step explanation:

£2.45-£0.35= £2.10 £2.10 divided by 3= £0.70 for each banana

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Answer:

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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

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For this problem, we have that:

323 blacks, 86% of blacks said that they would welcome a white person into their families. This means that n = 323, p = 0.86

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.

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\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 - 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8222

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 + 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8978

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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Answer:  
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1)   " 30, 60, 50 " .

2)  " 30, 50, 6 " .

3)  " 60, 50, 3 " . 
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Answer:

y=1/2x+3

Step-by-step explanation:

-4x+8y=24

Slope-intercept form: y=mx+b

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