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PilotLPTM [1.2K]
3 years ago
6

Two sixth grade classes are raising money. Mrs. Shen's class raises $120. Mr. McClary's class raises 50% of the amount Mrs. Shen

's class raises. How much money do the two classes raise in all? A $60 B $170 C $180 D $240 Jake chose A as the correct answer. How might he have gotten that answer? "X"​
Mathematics
1 answer:
kondaur [170]3 years ago
4 0

Answer:

C, He got that answer by thinking that the question was asking how much Mr.McClary's class made

Step-by-step explanation:

Mrs.Shen Raised $120

Mr. McClary raised $60 (50% of 120)

120

+<u>60</u>

180

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The function g has an inverse. The function g − 1 determines the number of folds needed to give the folded paper a thickness of
Amanda [17]

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
A suit is on sale for $336, which is 64% of the regular price.<br> What is the regular price?
Leto [7]

Answer:

Hi there!

Your answer is

Regular price is 525$

Step-by-step explanation:

336$ = 64%

/64 to determine 1%

5.25$ = 1%

*100 to determine regular price

525$ = 100%

8 0
3 years ago
So Ross details cars. He has gotten $10, $12, $15, $18, and $20. How much does he have to charge for the next car to get a mean
ankoles [38]

Answer:

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Step-by-step explanation:

10+12+15+18+20=75

75/x=17

17x=75

X=4.41

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3 years ago
Will mark brainliest for the **CORRECT** answer!
Paraphin [41]

Answer:

4x + 12x = 320

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x = 20

Step-by-step explanation:

This is because the diagram shows 4x + 12x and the total being, 320.

4x + 12x = 16x

and 320/16 = 20

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Is a number that can only be devided by one and itself
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A number that can only be divided by 1 and itself is a prime number.

Hope this helps! :D
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3 years ago
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