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Mekhanik [1.2K]
2 years ago
14

A number rounded to the nearest hundred thousand is 400,000 the same number rounded to the nearest ten thousand is 350,000 what

is the number
Mathematics
1 answer:
Arisa [49]2 years ago
3 0

Answer:

347,000

Step-by-step explanation:

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She walks 2 minutes for every 5 she runs. If she walks for 12 minutes how many minutes does she spend running?
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I believe it is, 30 minutes of running.

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Then, you just have to multiply 6 by 5 and then you get 30.
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What is the formula for finding the height of a cylinder?
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(HELP WITH THIS )Suppose ages of cars driven by company employees are normally distributed with a mean of 8 years and a
8090 [49]

Answer:

Let say 75% of  cars older than age  = Y  years

than 25 % cars of age less than Y Years

Z score corresponding to 25 %  =  -0.674

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SD = 3.2

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Three workers have to do a certain job. The first worker can finish the job in 8 hours. The second worker can finish the job in
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Working together three workers would take 1 hour 36 minutes to finish the job

<em><u>Solution:</u></em>

Given that first worker can finish the job in 8 hours

So in one hour, first worker can do \frac{1}{8} th of the work

The second worker can finish the job in 4 hours

So in one hour, second worker can do \frac{1}{4} th of the work

The third worker can also finish the job in 4 hours

So in one hour, third worker can do \frac{1}{4} th of the work

<em><u>The three workers working together in 1 hour can do:</u></em>

\frac{1}{8} + \frac{1}{4} + \frac{1}{4} = \frac{1 + 2 + 2}{8} = \frac{5}{8}

The three worker can thus do \frac{5}{8} th of the work in one hour

Hence the three of them together can finish the work in \frac{8}{5} hours

\frac{8}{5} = 1\frac{3}{5} hours

Thus working together three workers would take 1 hour 36 minutes to finish the job

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Look at this triangle.<br> 8 cm<br> 22 cm<br> Work out length AB.
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