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3 years ago

There are 135 people in a sport centre.

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

5 0

Answer:

$\dfrac{1}{9}$

Step-by-step explanation:

4 people use all three facilities, then

16 - 4 = 12 people use the gym and the track and do not use the pool;
9 - 4 = 5 people use the pool and the track and do not use the gym;
19 - 4 = 15 people use the gym and the pool and do not use the track.

At least two facilities use 4 + 12 + 5 + 15 = 36 people, 4 of them use all three facilities. Thus, the probability that a randomly selected person which uses at least two facilities, uses all the facilities is

$\dfrac{4}{36}=\dfrac{1}{9}$

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4 years ago

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3 years ago

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yaroslaw [1]

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3 years ago

Read 2 more answers

PLEASE HELP!!!!

Semmy [17]

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then you can find the slope and the correct equation of the line :

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so the equation of the line will be
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D is true
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3 years ago