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murzikaleks [220]
3 years ago
11

Sally’s dance school had 60 students last year. This year there are only 48 students enrolled. By what percent did the enrollmen

t decrease?
Mathematics
1 answer:
Morgarella [4.7K]3 years ago
8 0

Answer:

-20%

My brain is weird on how i figure it out but I divided 48 by 60 and got .80 so i just got the other whole to make it 1 so it is 20%. This is not the correct way to do this but this is how i got my answer.

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How to solve <img src="https://tex.z-dn.net/?f=log_%7By%7D%285y%29%20%3D%202" id="TexFormula1" title="log_{y}(5y) = 2" alt="log_
Natalija [7]

Answer:

  y = 5

Step-by-step explanation:

Expand the logarithm:

\log_y{(5)}+\log_y{(y)}=2\\\\\dfrac{\log{(5)}}{\log{(y)}}+1=2 \quad\text{change of base formula}\\\\\dfrac{\log{(5)}}{\log{(y)}}=1 \quad\text{subtract 1}\\\\\log{(5)}=\log{(y)} \quad\text{multiply by log(y)}\\\\5=y \quad\text{take the anti-log}

_____

You can also take the antilog first:

  5y = y²

  y(y -5) = 0 . . . . . subtract 5y, factor

  y = 0 or 5 . . . . . y=0 is not a viable solution, so y=5.

5 0
3 years ago
Helen had $330 in her savings account when Vince opened a savings account with zero dollars.
Nastasia [14]

I think the answer is 30x+330>50x

Step-by-step explanation:

for the option A it was slightly changed,

cause the $30 was deposited by <em><u>helen</u></em> not <em><u>Vince.</u></em>

<em><u>so </u></em><em><u>check </u></em><em><u>that </u></em><em><u>well</u></em>

4 0
3 years ago
What do i do?? i just have to find what the the question marks show.
lina2011 [118]
------------------------------------------------------
Given information
------------------------------------------------------
100%  = $27.60

------------------------------------------------------
Rewriting it
------------------------------------------------------
\$27.60 = 100 \%
\$1 = 100 \div 27.60 \%
\$1 =  \frac{250}{69} \%

------------------------------------------------------
Find $4.14 in percentage
------------------------------------------------------
\$1 = \frac{250}{69} \%
\$4.14 =  \frac{250}{69}  \times 4.14
\$4.14 = 15%

------------------------------------------------------
Answer: 15%
------------------------------------------------------


------------------------------------------------------
Find $31.74 in percentage
------------------------------------------------------
\$1 = \frac{250}{69} \%
\$31.74 = \frac{250}{69} \times 31.74
$31.74 = 115%

------------------------------------------------------
Answer: 115%
------------------------------------------------------
4 0
3 years ago
There are 32 munchkins in the box. You want to distribute the munchkins to Amir and Isaac so that the ratio of Amir's munchkins
GrogVix [38]
A gets 5 parts and I gets 8 parts
So 5+8=13. A will get 5/13 parts of the total
5/13*32(total)=12.3 since he can’t get .3 we round and Amir gets 12 leaving 20 for Isaac.
5 0
3 years ago
Read 2 more answers
23 POINTS A 3-column table with 5 rows. Column 1 has entries Mean, median, mode, range, M A D. Column 2 is labeled Noah with ent
jek_recluse [69]

Answer:

Answer:Noah and Gabriel are in the same English class. They have taken 6 quizzes so far. ... Gabriel's scores: 82, 85, 86, 86, 90, 94 Total of 523 ... What are Gabriel's mean, median, and mode? ... 1.1/5. 2. ryan28772020. ryan28772020. jd3sp4o0y. +16. jd3sp4o0y and 16 ... D. The mean is 83 and the median is 90.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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