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3 years ago

If events A and B are independent, and the probability that event A occurs is 83%, what must be true?

1 answer:

3 0

The probability of event B occurring is 17%.
Imagine that you enter 83 raffle tickets and a friend of yours enters 17 tickets. If you two are the only ones who enter, the chance you have (83%) + the chance your friend has (17%) will equal the 100% chance that either one of you or your friend's raffle ticket will be drawn.

I hope this helps!

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Answer:

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Step-by-step explanation:

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since the Mantas travelled 120km in t times so

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3 years ago

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Meredith is playing games at an arcade to earn tickets that she can exchange for a prize. She has 255 tickets from a previous vi

aliya0001 [1]

Answer:

20 games.

Step-by-step explanation:

Given:

Meredith is playing games at an arcade to earn tickets that she can exchange for a prize.

She has 255 tickets from a previous visit.

She earns 6 tickets for each game she plays.

Meredith needs 375 tickets to exchange for the prize she wants.

Question asked:

How many games does Meredith need to play?

Solution:

Total tickets needed to exchange for the prize = 375

Meredith already have = 255 tickets

More tickets needed = 375 - 255 = 120 tickets

<u>By unitary method:</u>

She earns 6 tickets by playing = 1 game

She earns 1 ticket by playing = $\frac{1}{6}$ game

She earns 120 tickets by playing = $\frac{1}{6}\times120=\frac{120}{6} =20\ games$

Therefore, she needs to play 20 games to earn 120 more tickets.

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Step-by-step explanation:

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3 years ago

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