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-BARSIC- [3]
3 years ago
13

The ratio of boys to girls at the beach cleanup was 7:8 if there were 42boys how many girls were there

Mathematics
1 answer:
Sav [38]3 years ago
8 0

Let x be the number of girls at the beach. The ratio of boys to girls at the beach cleanup was 7 : 8. If there were 42 boys and x girls, you can write a proportion:

\dfrac{42}{x}=\dfrac{7}{8}.

Use the main property of proportion:

42\cdot 8=7\cdot x,\\ \\x=\dfrac{42\cdot 8}{7},\\ \\x=6\cdot 8=48.

Answer: 48 girls

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Answer:

See the explanation

Step-by-step explanation:

<h2>Analytic View:</h2>

If and event can occur in A number of way and fail in B number of ways, then probability of its occurrence is:

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or probability of its failing is:

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<h3>Example:</h3>

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<h2>Relative Frequency View:</h2>

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<h3>Example:</h3>

A batter has 50 safe hits at 200 bats, which makes his batting average \frac{50}{200}= 0.25 which is the probability.

<h2>Subjective View:</h2>

When you define a probability due to personel beleif in the likelihood of an outcome. It involve no formal calculations and varies from person to person, depending on their past experience.

<h3>Example:</h3>

A person beleives that probability that the batter will hit safely in the next bat is 0.75

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The updated IQR is 14.54.

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