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3 years ago

How is the following decimal read? 369.28

Mathematics

2 answers:

Musya8 [376]3 years ago

6 0

Answer:

369 and 28 hundredths

Step-by-step explanation:

So for example 369.28

The 2 will be a tenth (Because every first decimal starts with a tenth)

The 8 will be a hundredth (This happens because it is being multiplied by 10)

"But what if it is two or more decimals?"

You would just combine it and say it as a number but end it with a "ths".

So you get 369 and 28 hundredths

And also know that you can do this with any decimal!

rosijanka [135]3 years ago

3 0

Answer:

three hundred sixty-nine and twenty-eight hundreths

Step-by-step explanation:

. means "and"

make sure to add the dashes and twenty-eight is 28/100 so it's "twenty-eight hundredths

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3 years ago

The edge length of a cube is changing at a rate of 10 in/sec. At what rate is the cube's volume changing when the edge length is

olya-2409 [2.1K]

Given:

The edge length of a cube is changing at a rate of 10 in/sec.

To find:

The rate by which cube's volume changing when the edge length is 3 inches.

Solution:

We have,

$\dfrac{da}{dt}=10\text{ in/sec}$

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$V=a^3$

Differentiate with respect to t.

$\dfrac{dV}{dt}=3a^2\dfrac{da}{dt}$

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$\dfrac{dV}{dt}_{a=3}=3(3)^2(10)$

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