How to write 15409 in expanded form

Mathematics

2 answers:

Lady_Fox [76]3 years ago

7 0

10,000 + 5,000 + 400 + 9

lana66690 [7]3 years ago

5 0

10,000+5,000+400+9

I hope you are satisfied with my answer ,good luck!!

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When Alice spends the day with the babysitter, there is a 0.6 probability that she turns on the TV and watches a show. Her littl

slava [35]

Answer:

a) There is a 48% probability that both Alice and Betty watch TV tomorrow.

b) There is a 48% probability that Betty watches TV tomorrow.

c) There is a 12% probability that only Alice watches TV tomorrow.

Step-by-step explanation:

We have these following probabilities:

A 60% probability that Alice watches TV.

If Alice watches TV, an 80% probability Betty watches TV.

If Alice does not watch TV, a 0% probability that Betty watches TV, since she cannot turn the TV on by herself.

a) What is the probability that both Alice and Betty watch TV tomorrow?

Alice watches 60% of the time. Betty watches in 80% of the time Alice watches. So:

$P = 0.6*0.8 = 0.48$

There is a 48% probability that both Alice and Betty watch TV tomorrow.

b) What is the probability that Betty watches TV tomorrow?

Since Betty only watches when Alice watches(80% of the time), this probability is the same as the probability of both of them watching. So

$P = 0.6*0.8 = 0.48$

There is a 48% probability that Betty watches TV tomorrow.

c) What is the probability that only Alice watches TV tomorrow?

There is a 60% probability that Alice watches TV tomorrow. If she watches, there is an 80% probability that Betty watches and a 20% probability she does not watch.

$P = 0.6*0.2 = 0.12$

There is a 12% probability that only Alice watches TV tomorrow.

7 0

3 years ago

Plz I need help with some Maths?

Dima020 [189]

Before Brian starts messing with them, there are 24 balls in the bag.
9 of them are white.

-- The probability that Brian draws a white ball from the bag is (9/24) .

If he has already drawn one white ball and put it aside, then there are
23 balls left in the bag, and 8 of them are white.

-- The probability that Brian draws a white ball from the bag this time
is (8/23) .

So the probability of white balls on both draws is

   (9/24) x (8/23) =

      (72/552) =

   3 / 23 = about <em>13% </em>(rounded)

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3 years ago

Rick needs to be at school at 8:15 A.M. It takes him 20 minutes to walk to school.At what time dose he need to leave to get to s

Rom4ik [11]

Rick needs to leave at 7:55am to get to school on time.

7:55am is 20 minutes before 8:15am.

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2 years ago

Ms. Gaily got 15 pieces of chocolate for her birthday. She divided us her 15 pieces of chocolate into 5 piles so she has enough

FrozenT [24]

Answer:

15÷5 as a fraction is 15/5 (if you need it the answer to 15÷5 is 3)

Step-by-step explanation: