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NARA [144]
3 years ago
7

A water container is 1/8 full. 35 litres if water are now poured into the container. The container is now 1/4 full.

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

<em>The container can hold 280 liters of water.</em>

Step-by-step explanation:

<u>Proportions</u>

The water originally fills 1/8 of a container. Then 35 lt of water are poured into the container and now it's 1/4 full.

If we subtract the final portion of the tank minus the original portion of the container, we obtain the portion that was poured into.

\mathrm{Portion\ poured }=\frac{1}{4}-\frac{1}{8}=\frac{2}{8}-\frac{1}{8}=\frac{1}{8}

If 35 liters of water is 1/8 of the tank, then it can hold 35*8 = 280 liters.

The container can hold 280 liters of water.

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To solve for the confidence interval for the true average percentage elongation, we use the z statistic. The formula for confidence interval is given as:

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where,

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From the standard distribution tables, the value of z at 95% confidence interval is:

z = 1.96

 

Therefore substituting the known values into the equation:

Confidence interval = 8.63 ± (1.96) (0.79) / sqrt (56)

Confidence interval = 8.63 ± 0.207

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<span> </span>

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3 years ago
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Answer:

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Length of bird is 36 inches longer than twice it’s wingspan. The length of bird is 214 inches. What is the wingspan?
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