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satela [25.4K]
3 years ago
7

Kai calculates that he spends 15% of a school day in science class. If he spends 500 minutes in school what percent does he spen

d in science class
Mathematics
1 answer:
Olegator [25]3 years ago
7 0

to answer your question, 15%. if you really mean how many minutes he spends in class, then the answer is 75 minutes.
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Answer:

\mathbf{g^{-1} (t) = log _2  \ 20 \ t}

Step-by-step explanation:

Here is the full question

A standard piece of paper is 0.05 mm thick. Let's imagine taking a piece of paper and folding the paper in half multiple times. We'll assume we can make "perfect folds," where each fold makes the folded paper exactly twice as thick as before - and we can make as many folds as we want.

Write a function g that determines the thickness of the folded paper (in mm) in terms of the number folds made, n. (Notice that g(0) 0.05,)

g(n )= (05)2^n

The function g has an inverse. The function g⁻¹ determines the number of folds needed to give the folded paper a thickness of t mm. Write a function formula for g⁻¹).

<u>SOLUTION:</u>

If we represent g(n) with  t;

Then

\mathbf{t = (0.05)2^n} \\ \\ \mathbf{\dfrac{t}{0.05} = 2^n} \\ \\ \mathbf{\dfrac {100 \ t }{ 5} = 2^n} \\  \\ \mathbf{20 t = 2^n}

Taking logarithm of both sides; we have :

\mathbf{log (20 t) = n log 2}    \ \ \    \mathbf{(since  \ ,  log  \ a^b = b \ log \ a) }  \\ \\ \mathbf{n =  \dfrac{log \ 20 t }{log \ 2 }} \\ \\ \mathbf{g^{-1} (t) =  \dfrac{log \ 20 t }{log \ 2 }} \\ \\ \mathbf{g^{-1} (t) = log _2  \ 20 \ t}

4 0
4 years ago
Can anyone help me... plz
Natasha2012 [34]
Hey i am will to help or at least try I will send you the answers I come up with u in a pm sis!
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Write a proportion for each set of similar polygons and solve for the unknown side. Type the FULL answer in the box, using the v
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Answer:

Your answer is 4 :)

Step-by-step explanation:

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therefore 4 is your answer :) I hope I helped, and gosh I love triangle problems like this xD

Do you have any more? If so you can post them and I can do them for you!

I also appreciate Brainliest~ :D

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Harlamova29_29 [7]

Answer:

n+14

Step-by-step explanation:

To write an expression, we often have to interpret a written phrase. For example, the phrase “6 added to some number” can be written as the expression x + 6, where the variable x represents the unknown number.

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PLZ ANSWER<br> SCRENSHOT
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Answer:

Marcelino will break even

Step-by-step explanation:

if he spends 45 dollars on profits, and sells each balloon for $1.50 then you multiply 30 balloons by 1.5 and that equals 45 dollars, so he will break even

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