2 years ago

2. Which set contains the value below?

Mathematics

1 answer:

rewona [7]2 years ago

3 0

Answer:

Natural number

Step-by-step explanation:

May this help you

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Two groups collected litter along the side of the road it takes each group 5 minuites to clean up a 200 yard section how long do

meriva

This is dividing
So 1 mile has 1760 yards so in total
2 miles = 3520 yards and it takes 5 minutes to clean up 200 yards (We divide)
3520 ÷ 200 = 17.6 ( Now we multiply)
17.6 x 5 = 88 minutes or ( 1 hour and 22 minutes)

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3 years ago

Wilson paints 40% of a bookcase in 20 minutes how much more time will it take him to finish the bookcase?

Nadya [2.5K]

Answer:

30 minutes

Step-by-step explanation:

First you can break down the percent and the time into a fraction

You can divide it by 2

so 2%/1 (2% in 1 minute)

Then you find the amount of time it would take to paint the whole bookcase

2 * 100 = 50

So time to paint the whole bookcase would be 50

50 - 20 = 30

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3 years ago

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kaheart [24]

Answer:

B and c

Step-by-step explanation:

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3 years ago

Running times for 400 meters are Normally distributed for young men between 18 and 30 years of age with a mean of 93 seconds and

kkurt [141]

Answer: The running time should at least 119.32 seconds to be in the top 5% of runners.

Step-by-step explanation:

Let X= random variable that represents the running time of men between 18 and 30 years of age.

As per given, X is normally distrusted with mean $\mu=93\text{ seconds}$ and standard deviation $\sigma=16\text{ seconds}$ .

To find: x in top 5% i.e. we need to find x such that P(X<x)=95% or 0.95.

i.e. $P(\dfrac{X-\mu}{\sigma}$

$P(Z$

Since, z-value for 0.95 p-value ( one-tailed) =1.645

So,

Hence, the running time should at least 119.32 seconds to be in the top 5% of runners.

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3 years ago

What is 5.18 as a fraction

zhenek [66]

Answer:

Step-by-step explanation:

5 9/50

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3 years ago