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Nesterboy [21]
3 years ago
13

A light can shine blue (B), red (), or yellow (Y) Every second the color changes and is recorded. Estimate the probability the n

ext color will be red. B R Y R R R R Y R B R R
Mathematics
1 answer:
Naily [24]3 years ago
7 0

Answer:

The probability that the next color will be red is: \dfrac{2}{3}

Step-by-step explanation:

The probability of an event is defined as:

Probability=(Total number of favourable outcomes)/(Total number of outcomes )

Here we have to find the probability that the next colour is red is given by:

<em>The recordings are given as:</em>

B  R  Y  R  R  R  R  Y  R  B  R  R

Number of outcomes that red will come up=8

Total number of outcomes=12

Hence the probability is given by:

Probability=\dfrac{8}{12}=\dfrac{2}{3}


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Katy uses 1 8/9 bags of chocolate chips in one batch of cupcakes. if she has 3 11/12 bags of chocolate chips left, about how man
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1 (8/9) = 1.88888888
3 (11/12) = 3<span><span>.9166666667 </span>

</span>
3<span>.91666 / </span>1.8888 =  <span> <span> <span> 2.0735294118 </span> </span> </span>

So, she can make 2 batches of cupcakes.


8 0
3 years ago
Write an equation to represent the following statement.
svetoff [14.1K]

Answer/explanation:

60=5k 

Is the equation because the word is means equals, so we add an equal sign after the 60. Five times greater simply means multiply so we multiply 5 and k.

To solve the equation, you would need to divide both sides by 5 to isolate the variable

60/5=5k/5

12=k 

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3 years ago
Which could be the value of x in the<br> triangle below?
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8 0
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While mining, Keith found a large metal bar that weighed 42 ounces. Keith was also able to determine that the bar had 30 ounces
Usimov [2.4K]
Divide the silver present in the bar by the total weight of the bar to find the percentage of silver in the bar.

30 / 42 = 0.7142

Multiply this decimal by 100 for the percentage.

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8 0
4 years ago
Read 2 more answers
A Cepheid variable star is a star whose brightness alternately increases and decreases. For a certain star, the interval between
victus00 [196]

Answer:

a) \frac{dB}{dt} = \frac{5\pi}{4.2} \cdot \cos \left(2\pi\cdot \frac{t}{4.2} \right), b) \frac{dB}{dt}\approx 5.595

Step-by-step explanation:

a) The rate of change of the brightness of the Cepheid can be determined by deriving the function in time:

\frac{dB}{dt} = \left(\frac{2\pi}{4.2} \right)\cdot 0.25\cdot \cos (2\pi\cdot \frac{t}{4.2})

\frac{dB}{dt} = \frac{5\pi}{4.2} \cdot \cos \left(2\pi\cdot \frac{t}{4.2} \right)

b) The rate of increase after one day is:

\frac{dB}{dt} = \frac{5\pi}{4.2} \cdot \left(2\pi \cdot \frac{1}{4.2} \right)

\frac{dB}{dt}\approx 5.595

4 0
3 years ago
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