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aleksandr82 [10.1K]

2 years ago

15

a small dog’s heart beats about 530,000,000 times during its lifetime, and a large dog’s heart beats about 1.4 times this amount

. What is the approximate number of heartbeats in the lifetime of a large dog?

1 answer:

iren2701 [21]2 years ago

6 0

Answer:

I think the answer is 742,000,000

Step-by-step explanation:

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Allushta [10]

Answer:

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2 years ago

In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If 15 boys an

denis-greek [22]

Answer:

There are a total of possible 1820 results.

Step-by-step explanation:

Since there are two competitions, one for boys and one for girls, and we want all the possible results we will calculate the possible combinations for the boys and multiply them by the possible combinations for the girls. This is shown below:

$Boys = \frac{15!}{3!(15 - 3)!} = \frac{15!}{3!12!} = \frac{15*14*13*12!}{3!12!}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = 455$

$Girls = \frac{4!}{3!*(4 - 3)!}\\Girls = \frac{4*3!}{3!}\\Girls = 4$

Total number of possible results:

$results = 4*455\\results = 1820$

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3 years ago

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2 years ago

How do you write out 1,289,304

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The table shows all the possible sums when rolling two numbers cubes numbered 1-6 what is the probability that rolling two cubes

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Answer:

Step-by-step explanation:

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