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4 years ago

4. What’s the answer to this question?!

Mathematics

2 answers:

VladimirAG [237]4 years ago

7 0

Answer:

the answer is B.

Rina8888 [55]4 years ago

6 0

Answer:b

Step-by-step explanation:

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If Cody makes 10$ an hour at his after school job, how many hours will it take him to earn 150?

mixas84 [53]

Answer:

15 hours

Step-by-step explanation:

150 divided by 10 equals 15

7 0

3 years ago

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A bag contains 99 red marbles and 99 blue marbles. Taking two marbles out of the bag, you:

Aleksandr-060686 [28]

Number of Marbles in the Bag =[ 99 red marbles + 99 blue marbles]

Now , When you take two marbles out of the Bag, following are the conditions given

⇒put a red marble in the bag if the two marbles you drew are the same color (both red or both blue)

⇒ put a blue marble in the bag if the two marbles you drew are different colors.

Now ,Following are the possibilities

1. When you draw two red marble each time from the bag,after each draw number of marbles left in the bag

(99 R+99 B)⇒(98 R+99 B)⇒(97 R+99 B)⇒(96 R+99 B)⇒......(1R+99B)⇒Then there are two Possibilities

(2R+97 B)--Both are Blue.

(99B)--If one is red and one is Blue.

2. When you draw two Blue marble each time from the bag,after each draw number of marbles left in the bag

(99 R+99 B)⇒(100 R+98 B)⇒(101R+97 B)⇒(102 R+96 B)⇒........(197R+1B)⇒Then there are two Possibilities

(196R+1B)--Both are Red.

(196R +1B)--If one is red and one is Blue.

3. When you draw One Blue and One Red, marble each time from the bag,after each draw number of marbles left in the bag

(99 R+99 B)⇒(98 R+99 B)⇒(97 R+99 B)⇒(96 R+99 B)⇒........(1R+99 B)⇒(0R+99 B)⇒(1R+97B)........

In this case also, there are two possibilities.

R=Red

B=Blue

Can't Be predicted what will be the color of last Marble in all the three cases.

4 0

4 years ago

Which vehicle should I buy to get the best gas mileage (the most miles for each gallon of gas)?

Ronch [10]

Answer:

vehicle c

Step-by-step explanation:

vehicle d is at 180 with 6 gallons and vehicle c is at 120 with 2 gallons. kinda common sense

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3 years ago

1 whole minus 1 thirds

aliya0001 [1]

Answer:

2/3 or .6666666666.......

Step-by-step explanation:

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4 years ago

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What are the 10th and 90th percentiles of the distribution of sample proportion for the population proportion below?

levacccp [35]

Answer:

The 10th percentile is 0.0784.

The 90th percentile is 0.1616.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

For a proportion p in a sample of size n, we have that $\mu = p, \sigma = \sqrt{\frac{p(1-p)}{n}}$