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ziro4ka [17]
3 years ago
14

If 1 16 oz can cost. $1 how much is 8 40oz cans

Mathematics
1 answer:
Studentka2010 [4]3 years ago
3 0

Answer:

8 I think

Step-by-step explanation:

I did 40÷16=2.5 then 2.5×8=20

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makkiz [27]

Answer: i thinks it's D. none of the above because they are all angles?

Step-by-step explanation:

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Find the Volume. Can someone explain how they did it. thank you
hodyreva [135]
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4 0
3 years ago
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2) At the store Julie bought a shirt for $23.97, which was 25% off the original price. Which of these should she use to find x,
Scrat [10]

Answer:

0.75x = 23.97

Step-by-step explanation:

The total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75.

5 0
3 years ago
A researcher wishes to be 95% confident that her estimate of the true proportion of individuals who travel overseas is within 3%
andre [41]

Answer:  a) 683   b) 1067

Step-by-step explanation:

The confidence interval for population proportion is given by :-

p\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

a) Given : Significance level :\alpha=1-0.95=0.05

Critical value : z_{\alpha/2}}=\pm1.96

Margin of error : E=0.03

Formula to calculate the sample size needed for interval estimate of population proportion :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.2(0.8)(\dfrac{1.96}{0.03})^2=682.951111111\approx683

Hence, the required sample size would be 683 .

b) If no estimate of the sample proportion is available then the formula to calculate sample size will be :-

n=0.25(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.96}{0.03})^2=1067.11111111\approx1067

Hence, the required sample size would be 1067 .

3 0
3 years ago
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