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jonny [76]
3 years ago
5

A train is moving at uniform speed of 75km/hr.

Mathematics
1 answer:
Lina20 [59]3 years ago
4 0

Answer:

1. 30km in 24 mins

Step-by-step explanation:

\frac{75}{60}=1.25km/min

1.25×24=30km

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Well, a yard is equal to 36 inches.
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5 0
2 years ago
Shiny White dental insurance costs $258 per year. Approximately one-third of insured people need a filling, which averages $110
sveta [45]

Answer:

  about $145.33

Step-by-step explanation:

Consider a group of 15 customers. They will pay ...

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in premiums each year.

One-third of those, 5 customers, will submit claims for fillings, so will cost the insurance company ...

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And 80% of them, 12 customers, will submit claims for preventive check-ups, so will cost the company ...

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Then the average income per customer is this value divided by the 15 customers in the group:

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_____

<em>Alternate solution</em>

Above, we chose a number of customers that made 1/3 of them and 4/5 of them be whole numbers. You can also work with one premium and the probability of a claim:

  258 - (1/3)·110 - 0.80·95 = 145.33

8 0
3 years ago
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How do I do this and what’s the answer
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Answer:

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Step-by-step explanation:

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