3 years ago

What number is 30% of 80

Mathematics

2 answers:

IrinaVladis [17]3 years ago

8 0

The answer for 30% of 80 is “20”

hram777 [196]3 years ago

3 0

Answer:

Step-by-step explanation:

To find the % of something all you have to do is convert 30% to a decimal (.3) and times it by the number you want the percent out of (80) so 80 *.3= 24

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3 years ago

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AlekseyPX

Answer:

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Step-by-step explanation:

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The fish population of Lake Collins is decreasing at a rate of 5% per year. In 2004 there were about 1,350 fish. Write an expone

ad-work [718]

Answer:

Part 1) The exponential function is equal to $y=1,350(0.95)^{x}$

Part 2) The population in 2010 was $992\ fish$

Step-by-step explanation:

Part 1) Write an exponential decay function that models this situation

we know that

In this problem we have a exponential function of the form

$y=a(b)^{x}$

where

y ----> the fish population of Lake Collins since 2004

x ----> the time in years

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b is the base

we have

$a=1,350\ fish$

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substitute

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we have

$y=1,350(0.95)^{x}$

For $x=(2010-2004)=6\ years$

substitute

$y=1,350(0.95)^{6}=992\ fish$

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