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3 years ago

An emperor penguin made 460 dives in 12 hours. At this rate, how many dives did the penguin make in 3 hours?

2 answers:

7 0

This question is ratio based.
So 460:12
? : 3
To get from 12 to 3, you divide by 4 (3 is 1/4 of 12)
So...
Divide 460 by 4 too
460/4 = 115 dives in 3 hours

Elenna [48]3 years ago

4 0

Proportionality, assuming constant rate. 460 dives/12 hours = x dives/3 hours. Solve for x.

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3 years ago

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Vladimir79 [104]

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3 years ago

NASA is conducting an experiment to find out the fraction of people who black out at G forces greater than 6. Step 1 of 2 : Supp

Andru [333]

Answer:

The estimate of the proportion of people who pass out at more than 6 Gs is 0.279.

Step-by-step explanation:

Estimate of the proportion of people who pass out at more than 6 Gs.

Number of people who passed out divided by the size of the sample.

We have that:

Sample of 502 people, 140 passed out at G forces greater than 6. So the estimate is:

$p = \frac{140}{502} = 0.279$

The estimate of the proportion of people who pass out at more than 6 Gs is 0.279.

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3 years ago