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Leto [7]
3 years ago
11

robert is in charge of the community swimming pool. each spring he drains is in order to clean it. then he refills the pool, whi

ch holds 120,000 gallons of water. robert fills the pool at a rate of 10 gallons each minute. what is the rate at which robert will the pool? is it constant?
Mathematics
1 answer:
Airida [17]3 years ago
8 0
If the required rate is gallons per minute, then its obvious from the question, that the rate of filling the pool is 10 gallons per minute, and its obviously a constant number. 
But for the rate to be in gallons per hour, then 
1 minute corresponds to 10 gallons
so 
1 hour corresponds to 10x60 = 600 gallons
hence
rate (gallons per hour) = 120,000/600 =  200 gallons per hour. 
which is again a constant number. 
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GalinKa [24]

The possible outcomes are there on Ryan's first turn flipping two cards is

<h3>What are cards?</h3>

The cards are 52 in number in which 13 cards are different. Each card is four in quantity.

Ryan is playing a multiplication game with a pile of 26 cards, each with a number on them.

Each turn, he flips over two of the cards and has to  multiply the numbers.

The  number of ways in which two cards can be selected  from 26 cards, at the same time. The order of those are important.

Then, the number of possible outcomes on each flip of two cards

= 26 p(2)

= 26 x 25

=650

Thus, the possible outcomes are there on Ryan's first turn flipping two cards.

Learn more about cards.

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3 0
1 year ago
6 - 8x = 5x - 10x + 12<br> Please help I suck at math thank you
Irina18 [472]

Answer:

I guess it's -2

Step-by-step explanation:

6-8x = 5x - 10x + 12

∴ 10x - 8x - 5x = 12 - 6

∴ 10x- 13x = 6

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∴ x = -6\3

∴ x = -2

3 0
2 years ago
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Consider the hypothetical study described below. Based solely on the information​ given, do you have reason to question the resu
elena-14-01-66 [18.8K]

Answer:

(B) ​Yes, there is reason. The TV audience might not be representative of the population.

(E) ​Yes, there is reason.​ Call-in polls tend to be biased.

Step-by-step explanation:

According to the information given we might consider two answers.

The first answer is:

<em>(B) ​Yes, there is reason. The TV audience might not be representative of the population.</em>

Let's remember that for a sample to be representative of a population must be random and every person must have the same probability of being selected. Here, the question is targeted only to the TV show's audience, so the results can only be interpreted for this segment of the population.

<em>(E) ​Yes, there is reason.​ Call-in polls tend to be biased.</em>

The risk is that the people who call might be influenced by the show itself and would not give an unbiased answer. This creates a bias on the sample. Besides, as stated before, not all the elements of the population can be part of the sample.

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3 years ago
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Charra [1.4K]

Answe

b i hoped this help :)

Step-by-step explanation:

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