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Digiron [165]
3 years ago
14

4 is 80% of what number?

Mathematics
2 answers:
Darya [45]3 years ago
6 0
Your equation would be 4=80%x. Let X represent the number you are looking for. 
First, you must change 80% in to a decimal because you cannot multiply a percent. 4=8x
Then, divide 4 by 8 to solve X. 
Your answer is .5. 
To check if your answer is correct, plug in .5 into the equation. 4=8×.5.

just olya [345]3 years ago
5 0
4 is 80% of 5, because 1 is worth 20% 
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Step-by-step explanation:

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2 years ago
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Answer:

There will be one person on 1 square yard of land after 1,892,147.588 years.

Step-by-step explanation:

Continuous exponential growth formula:

P(t)=Pe^{rt}

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t= time in year

Given that,

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There will be one person on one  square yard of land.

So, there will be 14,000,000,000  person for 14,000,000,000 square yard of land in country A.

P(t)=14,000,000,000 person

\therefore 14,000,000,000= 151,000 e^{0.049t}

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Taking ln both sides

\Rightarrow ln|e^{0.049t}|=ln|\frac{ 14,000,000,000}{ 151,000}|

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There will be one person for every square yard of land after 1,892,147.588 years.

7 0
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4 0
3 years ago
A triangle was dilated by a scale factor of 6. If sin aº
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Answer:

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Step-by-step explanation:

A triangle was dilated by a scale factor of 6. If sin a° = four fifths and segment DE measures 30 units, how long is segment EF?

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15.5 units

24 units

30 units

37.5 units

From the description:

angle D measures a degrees

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8 0
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