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3 years ago

What is the answer to 3/5 x 10/21 in simplest form???

2 answers:

hjlf3 years ago

8 0

First, let's make this easier. Think of 3/5 multiplied by 10/21 as different multiplication problems. First, you should multiply the numerators then the denominators. But before we actually multiply, we can cross simplify.

3 10
_ _
5 21 3 divided by 3= 1. 21 divided by 3 is 7. Then you can cross simplify again. 5 divided by 5 is 1. 10 divided by 5 is 2. So your multiplication problem has now been put into simpler terms and smaller numbers. This makes it easier to solve so you don't have to multiply such big numbers together.

Your new much simpler multiplication problem is 1/1 multiplied by 2/7. Your answer is 2/7 and it has been put into simplest form.

(Sorry the explanation is so long. Hope this helps!)

jeka943 years ago

3 0

6/21 I think cause you can't go down any more

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3 years ago

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1 year ago

The distribution of the annual incomes of a group of middle management employees approximated a normal distribution with a mean

kondor19780726 [428]

Answer:

68% of the incomes lie between $36,400 and $38,000.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $37,200

Standard Deviation, σ = $800

We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.

Empirical rule:

Almost all the data lies within three standard deviation of mean for a normally distributed data.
About 68% of data lies within one standard deviation of mean.
About 95% of data lies within two standard deviation of mean.
About 99.7% of data lies within three standard deviation of mean.

Thus, 68% of data lies within one standard deviation.

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Thus, 68% of the incomes lie between $36,400 and $38,000.

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3 years ago

The volume of a cylinder is 1029pi cmcubed. The radius of the base of the cylinder is 7 cm. What is the height of the cylinder?

DedPeter [7]

Answer:

Height is 21cm

Step-by-step explanation:

Volume of the cylinder = 1029pi

Base area = 7x7xpi = 49pi

Therefor the height = 1029pi/49pi=1029/49 = 21cm

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3 years ago

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