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Leto [7]
3 years ago
5

A man earns Rs 20 on first day and spends Rs 15 on next day. He again earns rs 20 on third day and spends Rs 15 on fourth day.If

he continues to save in this way , when will he have Rs 60 in hand?
Mathematics
1 answer:
finlep [7]3 years ago
5 0

Answer:

It will take him 24 days to have Rs 60 in hand.

Step-by-step explanation:

A man earns Rs 20 on first day and spends Rs 15 on next day. He again earns rs 20 on third day and spends Rs 15 on fourth day. It means that in 2 days, the man saves Rs 5, in 4 days, he saves 5 + 5 = Rs 10. On the sixth day,he would be having 5+5+5 = Rs15 and on the eighth day, he would be having 5+5+5+5 = Rs 20

If he continues to save in this way, the number if days it will take him to save Rs 60 would be

(60×2)/5 = 24

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Mekhanik [1.2K]

Answer: We know that an "exponential growth" is that where a function start growing slowly and after start increasing more quickly.

a "logarithmic growth" is the opposite of this, at first you will see a quick increase, that after some time gets slower.

But in this case we are searching for decays: The decays are the opposite of the growths, an "logarithmic decay" starts slow and gets faster latter, and an "exponential decay" decreases very quickly at first, and latter more slowly.

Then, the model for the temperature of the hot tea over the time is a "exponential decay", this is a function of the form T(x) = T₀e^{-kt}, where T₀ is the initial temperature, t is the time, and k is a constant number.

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3 years ago
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nikitadnepr [17]

Answer:

Answer D

Step-by-step explanation:

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3 years ago
The growing interest in and use of the Internet have forced many companies into considering ways to sell their products on the W
Romashka [77]

Answer:

Kindly check explanation

Step-by-step explanation:

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4 0
3 years ago
I don't know to find the answer to 8. Can someone explain to me?
lapo4ka [179]
Perhaps the easiest way to find the midpoint between two given points is to average their coordinates: add them up and divide by 2.

A) The midpoint C' of AB is
.. (A +B)/2 = ((0, 0) +(m, n))/2 = ((0 +m)/2, (0 +n)/2) = (m/2, n/2) = C'
The midpoint B' is
.. (A +C)/2 = ((0, 0) +(p, 0))/2 = (p/2, 0) = B'
The midpoint A' is
.. (B +C)/2 = ((m, n) +(p, 0))/2 = ((m+p)/2, n/2) = A'

B) The slope of the line between (x1, y1) and (x2, y2) is given by
.. slope = (y2 -y1)/(x2 -x1)
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.. slope = (n/2 -0)/((m+p)/2 -0) = n/(m+p)

C) We know the line goes through A = (0, 0), so we can write the point-slope form of the equation for AA' as
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.. y = n*x/(m+p)

D) To show the point lies on the line, we can substitute its coordinates for x and y and see if we get something that looks true.
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Putting these into our equation, we have
.. n/3 = n*((m+p)/3)/(m+p)
The expression on the right has factors of (m+p) that cancel*, so we end up with
.. n/3 = n/3 . . . . . . . true for any n

_____
* The only constraint is that (m+p) ≠ 0. Since m and p are both in the first quadrant, their sum must be non-zero and this constraint is satisfied.

The purpose of the exercise is to show that all three medians of a triangle intersect in a single point.
7 0
3 years ago
The sum of five times a number and -6 is -2
k0ka [10]
5n + (-6) = -2
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4 0
3 years ago
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