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3 years ago

In a class of 25 students, 15 of them have a cat,

Mathematics

2 answers:

erastova [34]3 years ago

3 0

So 3 have no pets, so 25 - 3 = 22 students have a pet.

There are 15 cats and 16 dogs so 15 + 16 = 31.

And then 31 - 22 = 9. The 9 means that 9 students have both pets.

So the probability is 9/25.

Tatiana [17]3 years ago

3 0

Answer:

number of students who have cat and dog

= y

= 9

P( student chosen has a dog and cat )

= 9/25

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Complete Question

We can calculate EEE, the amount of euros that has the same value as DDD U.S. Dollars, using the equation

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Answer:

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b) 1.18 dollars

Step-by-step explanation:

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a) How many euros have the same value as 1 U.S. Dollar? euros

E = 17/20D

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b) How many U.S. Dollars have the same value as 1 euro? dollars

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3 years ago

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Answer:

0 - 20

1 -22

5 - 30

10 - 40

15 - 50

20 - 60

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