2 years ago

What two numbers plus 85 equals 180 ?

Mathematics

1 answer:

belka [17]2 years ago

8 0

Answer:

You could do a number of different pairs of numbers but I would do 90+5+85=180.

Step-by-step explanation:

1. I would subtract 85 from 180

2. Then you would get 95

3. Then you could see how what two numbers equal 95

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Y_Kistochka [10]

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Step-by-step explanation:

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2 years ago

Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n equals

Alekssandra [29.7K]

Answer:

(0.767,0.833)

Step-by-step explanation:

The 95% confidence interval for population proportion p can be computed as

$p-z_{\frac{\alpha }{2} } \sqrt{\frac{pq}{n} }$

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p=440/550=0.8

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$0.8-1.96\sqrt{\frac{0.16}{550} }$

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$0.8-0.03343$

$0.76657$

Thus, the required confidence interval is

0.767<P<0.833 (rounded to 3 decimal places)

Hence, we are 95% confident that our true population proportion will lie in the interval (0.767,0.833)

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2 years ago

Gail baked some cookies. She sold 2/7 of the cookies on Monday. She sold 1/3 more of the cookies on Tuesday than on Monday. What

Zina [86]

So 2/7 cookies on Monday
n 1/3 more on Tuesday
so we are going to fine Tuesday's amount , to find what fraction did Gail sell on the two days
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2/7 + 1/3
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bogdanovich [222]

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3 years ago