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Maru [420]
3 years ago
12

a rabbit falls into a dry well 30 meters deep. since being at the bottom of a well she tries to go up 3 meters but falls down 2

meters. how many days does it take her to get out of the well?
Mathematics
1 answer:
myrzilka [38]3 years ago
3 0

I believe the correct answer is the 27th day, since it goes up three each day and down 2 each day.  Kinda like this

Day 1: Up 3 - 2 = 1

Day 2: Your starting point is now 1.  1 + 3 - 2 = 2

And then it would keep on going up by ones until you reached day 27.  Then it will be Day 27: 27 + 3 - 2.  However on that day the rabbit would've already reached the top of the well and would not have slid down the two meters.  Hope this long kinda confusing explanation is correct and helpful.

-TTL

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Answer:

-4x-34

Step-by-step explanation:=−4x+−28+−6

=(−4x)+(−28+−6)

=−4x+−34

3 0
3 years ago
I NEED HELP!! please show all work
PtichkaEL [24]

Take the logarithm of both sides. The base of the logarithm doesn't matter.

4^{5x} = 3^{x-2}

\implies \log 4^{5x} = \log 3^{x-2}

Drop the exponents:

\implies 5x \log 4 = (x-2) \log 3

Expand the right side:

\implies 5x \log 4 = x \log 3 - 2 \log 3

Move the terms containing <em>x</em> to the left side and factor out <em>x</em> :

\implies 5x \log 4 - x \log 3 = - 2 \log 3

\implies x (5 \log 4 - \log 3) = - 2 \log 3

Solve for <em>x</em> by dividing boths ides by 5 log(4) - log(3) :

\implies \boxed{x = -\dfrac{ 2 \log 3 }{ 5 \log 4 - \log 3 }}

You can stop there, or continue simplifying the solution by using properties of logarithms:

\implies x = -\dfrac{ \log 3^2 }{ \log 4^5 - \log 3 }

\implies x = -\dfrac{ \log 9 }{ \log 1024 - \log 3 }

\implies \boxed{x = -\dfrac{ \log 9 }{ \log \frac{1024}3 }}

You can condense the solution further using the change-of-base identity,

\implies \boxed{x = -\log_{\frac{1024}3}9}

5 0
2 years ago
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Sever21 [200]

Answer:

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Step-by-step explanation:

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7 0
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Reil [10]

Answer:

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the rule says

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so in our case

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so the division is

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we can simplify

\frac{18}{20} \\\\=\frac{2(9)}{2(10)} \\\\=\frac{9}{10}

that's our answer

I don't know if you need step by step of the rule, if you need let me know

6 0
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