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Minchanka [31]
3 years ago
5

After filling a gas tank the odometer read 39.007.2 after the next filling it read 39.469.2 it took 17.5 gal to fill the tank, h

ow many miles per gallon did the driver get ?
Mathematics
1 answer:
Nastasia [14]3 years ago
3 0
(39,469.2 - 39,007.2)/17.5 will give you miles per gallon
The total miles driven were 462 miles/17.5 gal = 26.4 miles per gallon
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If one cat eats 1/4 of a tin per day then two cats eat 1/2 of a tin per day.

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One household is to be selected at random from a town. ​ ​The probability that ​the household has a cat is 0.20.2 . ​ ​The proba
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Answer:

There is a 50% probability that the household has a dog, given that the household has a ​cat.

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We solve this problem building the Venn's diagram of these probabilities.

I am going to say that:

A is the probability that a household has a cat.

B is the probability that a household has a dog.

We have that:

A = a + (A \cap B)

In which a is the probability that a household has a cat but not a dog and A \cap B is the probability that a household has both a cat and a dog.

By the same logic, we have that:

B = b + (A \cap B)

The probability that the household has a cat or a dog is 0.5

a + b + (A \cap B) = 0.5

The probability that the household has a dog ​is 0.4

B = 0.4

B = b + (A \cap B)

b = 0.4 - (A \cap B)

The probability that ​the household has a cat is 0.2.

A = 0.2

A = a + (A \cap B)

a = 0.2 - (A \cap B)

So

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What is ​the probability that the household has a dog, given that the household has a ​cat?

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There is a 50% probability that the household has a dog, given that the household has a ​cat.

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