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3 years ago

When are x+3 and 2x equal? When are they not equal?

Mathematics

1 answer:

irinina [24]3 years ago

3 0

Answer:

x+3= 2x when x = 3

3+3 = 2*3

6= 6

They are not equal when x is any other number rather than 3

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When playing the roulette at a casino, you have exactly 1/35 chance of winning in each round if you play a single number. Your f

Vikentia [17]

Answer:

0.2275 = 22.75% probability that you actually won that round

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Fireworks going off

Event B: You won

Probability of fireworks going off.

100% of 1/35 = 0.0286(when you win)

10% of 34/35 = 0.9714(you lost). So

$P(A) = 0.0286 + 0.1*0.9714 = 0.12574$

Probability of you winning and fireworks going off:

100% of 1/35, so $P(A \cap B) = 0.0286$

If you failed to see the outcome of a round, but you see the fireworks going off, then what is the probability that you actually won that round?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0286}{0.12574} = 0.2275$

0.2275 = 22.75% probability that you actually won that round

8 0

3 years ago

Carlos is looking at apartments with 3 of his friends. They want the monthly rent to be no more than $2,360. If the roommates sp

alekssr [168]

Answer:

$590

Step-by-step explanation:

$2360 divided by 4 is $590.

3 0

4 years ago

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HELP ASAP!!!!!! WILL MARK BRAINLIEST!!!!!!!! 25 POINTS!!!!!!!!!!!!!!!

coldgirl [10]

Answer:

Jake is baking brownies & he wants do make a double batch. he needs 1 1/3 cups of milk and 2 cups water for a single batch. 3 cups milk and 4 cups water is the double ingredients recipe.

Hope this helps!

Brainliest?

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3 years ago

Eight times the sum of 11 and a number is 123. Which equation below can be used to find the unknown number

Darya [45]

The equation would be
8 * (11 + x) = 123

8 0

4 years ago

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Point (a, b) is transformed by the rule (a, b−4) .

PilotLPTM [1.2K]

It is given that the Point (a, b) is transformed by the rule (a, b−4) .

We have to identify the transformation which occurred.

Translation is a term used in geometry to describe a function that moves an object a certain distance. Since, a point (a,b) is transformed by the rule (a,b-4). It means that the point (a,b) is transformed to the point (a,b-4). It means that the point goes 4 units downwards. So, it means that the point got translated 4 units down.

Option 3 is the correct answer.

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3 years ago

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