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3 years ago

90000 is 1/10 of what?

Mathematics

2 answers:

Marina86 [1]3 years ago

8 0

Answer:

900000

Step-by-step explanation:

Nadya [2.5K]3 years ago

4 0

Answer:

900000

Step-by-step explanation:

You multiply 90000 by 10= 900000 which is also 10/10 of of 900000 which means 1/10 of 900000 is 90000

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The Gotemba walking trail up Mount Fuji is about 9 kilometres (km) long. Walkers need to return from the 18 km walk by 8 pm. Tos

worty [1.4K]

Answer:

He must start his journey by 11 AM

Step-by-step explanation:

Speed of Toshi while walking up the mountains is 1.5 kilometres per hour

Speed of Toshi while walking down the mountains = 2 * Speed of Toshi while walking up the mountains = 3 kilometres per hour

Time taken to travel 9 Km in the upward direction by Toshi = 9 Km/1.5 kilometres per hour = 6 hours

Time taken to travel 9 Km in the downward direction by Toshi = 9 Km/3 kilometres per hour = 3 hours

He will take total 6 hours + 3 hours = 9 hours to travel 18 Km distance

Thus, He must start his journey by 11 AM

3 0

3 years ago

tatuchka [14]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

1 Find the value of C to that the function probability density function defined as follow, also calculate the man and variance /

Viefleur [7K]

Answer:

$c = \frac{1}{12}$

The mean of the distribution is 0.25.

The variance of the distribution is of 0.6875.

Step-by-step explanation:

Probability density function:

For it to be a probability function, the sum of the probabilities must be 1. The probabilities are 3c, 3c and 6c, so:

$3c + 3c + 6c = 1$

$12c = 1$

$c = \frac{1}{12}$

So the probability distribution is:

$P(X = -1) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 0) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 1) = 6c = 6\frac{1}{12} = \frac{1}{2} = 0.5$

Mean:

Sum of each outcome multiplied by its probability. So

$E(X) = -1(0.25) + 0(0.25) + 1(0.5) = -0.25 + 0.5 = 0.25$

The mean of the distribution is 0.25.

Variance:

Sum of the difference squared between each value and the mean, multiplied by its probability. So

$V^2(X) = 0.25(-1-0.25)^2 + 0.25(0 - 0.25)^2 + 0.5(1 - 0.25)^2 = 0.6875$

The variance of the distribution is of 0.6875.

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3 years ago

A group of people signed up for a bus tour that costs a total of $1120. If they can increase the size of their group by 7 people

mr_godi [17]

Answer: 160

Step-by-step explanation:

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3 years ago

Gina is cleaning the tile floor in her kitchen. It takes her 20 minutes to clean 50 tiles.

diamong [38]

Answer:

2.5

Step-by-step explanation:

just divide 50 by 20

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3 years ago