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elena55 [62]
2 years ago
9

Question in picture please help!

Mathematics
1 answer:
EleoNora [17]2 years ago
3 0

Answer:

part a is A and E

Step-by-step explanation:

I had token the test

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Leni [432]

Answer:   Number 3 : 20/21

Number 4: 1/6

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3 years ago
HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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G

Step-by-step explanation:

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One car alarm is set to go off every 10 seconds. Another car alarm is set to go off every 5 seconds, and a third car alarm is se
erma4kov [3.2K]

Answer:

20 seconds

Step-by-step explanation:

Car A = every 10 seconds

Car B = every 5 seconds

Car C = every 4 seconds

If they all start to go off at the same time due to a loud clap of thunder, how long will it take until they all sound at the same time again?

To determine how long will it take until they all sound at the same time again, find the lowest common multiples of cars alarm time

Car A (every 10 seconds) = 20, 30, 40, 50, 60, 70, 80, 90

Car B (every 5 seconds) = 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60

Car C (every 4 seconds) = 8, 12, 16, 20, 24, 28, 32, 36, 40

The lowest common multiples of the cars alarm time is 20 seconds.

Therefore, it will take 20 seconds for they all sound at the same time again

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3 years ago
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lubasha [3.4K]

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What do you need help on?

3 0
3 years ago
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What the word or phrase that best describes the probability 0.0
kozerog [31]

Answer:

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Step-by-step explanation:

If the probability is 0, it cannot happen.

We use the words certain not to happen

It is certain not to happen

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3 years ago
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