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katovenus [111]
3 years ago
5

Help on question 2 please :/

Mathematics
2 answers:
irakobra [83]3 years ago
8 0
40% is close to 50% which is = to 1/2
So just divide 60 by 2. which would be around 30

this is the best way i could explain, I hope this helps
Lady_Fox [76]3 years ago
7 0
Well $30 is 50% of 60 so just subtract a little(maybe something like $25) and that is your estimate

40% of $60 is $24

I hope that helps!!!!!!

: )
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Fittoniya [83]

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7 0
3 years ago
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Marat540 [252]

Answer:

3.48 hours

Step-by-step explanation:

The equation is:

M(t)=20 e^{-0.86t}

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We have to substitute M(t) with "1" and find the corresponding value of "t". We will use natural log to solve this. Shown below:

M(t)=20e^{-0.86t}\\1=20e^{-0.86t}\\0.05=e^{-0.86t}\\Ln(0.05)=Ln(e^{-0.86t})\\Ln(0.05)=(-0.86t)Ln(e)\\t=\frac{Ln(0.05)}{-0.86}\\t=3.48

<u>Note: </u> Ln(e) = 1

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8 0
3 years ago
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6 0
3 years ago
5) HELP I don't know what I got incorrect can you please give me the answer and the step by step, THANK YOU SO MUCH TYSM!!!
MariettaO [177]
Same as moren.. sorry
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3 years ago
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