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Charra [1.4K]
4 years ago
6

A mountain climber's change in elevation over an 8-hour period is −248 feet . What is the mountain climber's average change in e

levation per hour for that time period?
-31 ft
-248 ft
31 ft
1,984 ft
Mathematics
2 answers:
castortr0y [4]4 years ago
8 0
-31 ft  average change per hour

-248/8 = -31
Amiraneli [1.4K]4 years ago
7 0

It is given that the mountain climber's change in elevation over an 8-hour period is −248 feet. Therefore, to find the average change in elevation per hour for that time period all that we need to do is divide the total change in elevation by the the time taken.

Therefore, average change=\frac{-248}{8}=-31 feet

Therefore, the first option is the correct option.

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<u></u>

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Explanation:

The table that shows the results and the question (taken from similar question) are:

<em>Number Showing       Frequency</em>

<em>on Top Face</em>

<em>      1                                     0</em>

<em>     2                                     3</em>

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<em />

<em>Based on these results, what is the experimental probability that the next time the number cube is rolled it will land with 5 or 6 showing on the top face?​ </em>

<h2 /><h2>Solution</h2><h2 />

The frequencies of each event recorded for a particular experience are named<em> experimental probabilities</em> and, in general, differ from the theoretical probabilities.

Experimental probabilities, for instance, when compared with the theoretical probabilities, may show a bias, like a loaded (unfair) die.

<em>The experimental probability that the next time the number cube is rolled it will land with 5 or 6 showing on the top face </em>is equal to the number of times the die showed a 5 or a 6 on the top face (the frequencies) divided by the number of times the experiment was performed:

  • Frequency of 5 on top face: 3
  • Frequency of 6 on top face: 5

                                                     ====

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Probability = 8 / 20 = 2 / 5 = 0.4 ← answer

<h2 />

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Step-by-step explanation:

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Keywords: Addition

Learn more about addition at:

  • brainly.com/question/2154850
  • brainly.com/question/2367554

#LearnwithBrainly

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