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laiz [17]
3 years ago
7

a bag contains 10 marbles four of them are red three blue two white and one yellow a marble is drawn at ramdom what is the proba

bility that it is blue?
Mathematics
2 answers:
RoseWind [281]3 years ago
4 0

Answer:

The probability can be written as;

3/10

0.3

30%

Step-by-step explanation:

To determine the probability, we will find: (the number of favourable outcomes) / (the number of possible outcomes).

The favourable outcome is 3, because there are 3 blue marbles.

The possible outcome in 10, because there are 10 total marbles.

The probability is 3/10.

Let's divide: 3 ÷ 10 = 0.30

There is a 30% chance of drawing a blue marble.

TEA [102]3 years ago
3 0

Answer:

<em>The probability is 3 out of ten / </em><em><u>3/10 </u></em>, 0.3 , or 30%

Step-by-step explanation:

So suppose you have 10 marbles infront you

Four of them are RED   ΘΘΘΘ

Three of them are BLUE ΘΘΘ

Two of them are White  ΘΘ

One of them is yellow   Θ

We only need the probability for the blue marbles

Lets look at the blue marbles out of every other colored marble

There is ΘΘΘ (3) BLUE MARBLES out of the other 10 '

So the answer is 3 out of 10.

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Please solve the question and give correct answer with explanation so that i can understand it​
denis-greek [22]

Answer:

  • Yes

Step-by-step explanation:

Let the speed of the car is c and speed of the plane is p.

<h3>We are given:</h3>

The speed of the plane is 7 times the speed of the car

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The distance traveled is

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The time difference to travel this same distance is 3 hours.

<h3>We know that:</h3>
  • d = ts, where d- distance, t- time, s - speed

Find the time for car and plane and their difference.

<h3>Car</h3>
  • t = d/s = 315/c
<h3 /><h3>Plane</h3>
  • t = d/s = 315/p = 315/(7c) = 35/c
<h3 /><h3>The difference</h3>
  • 315/c - 45/c = 3

<u>Solve it for c:</u>

  • (315 - 45)/c = 3
  • 270/c = 3
  • c = 270/3
  • c = 90 km/h

Now find the speed of plane:

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As we see, Jenny is right

6 0
2 years ago
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Tamiku [17]
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klio [65]

Answer:

x + 8

Step-by-step explanation:

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3 years ago
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rewona [7]
A dime is a ten cent coin while a quarter is a 25 cent coin. The total of the money should be $8.40. Let x be the number of dime and y be the number of quarter. The equation that would best represent the given problem is,
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5 0
3 years ago
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hammer [34]

Answer:

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Step-by-step explanation:

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3 years ago
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