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brilliants [131]
3 years ago
9

What is 84 seconds to 8 seconds

Mathematics
1 answer:
Inessa05 [86]3 years ago
5 0

Answer:

8 out of 84: 90% decrease

200 out of 238: 16% decrease

Step-by-step explanation:

To find a percent decrease, you first subtract the end number by the initial number. This gives you the change.

ex. 84-8=76

Now you divide the change by the initial number. You'll get a decimal.

ex. 76/84=0.904...

Multiply the decimal times 100, or move the decimal to the right twice.

ex. 0.904... -> 90.4...

Now round to the nearest ones place

ex. 90.4 -> 90%

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The equation of the least-squared regression line is: In(Element) = 2.305 - 0.101(Time).

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According to the given problem,

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