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anzhelika [568]
3 years ago
5

HELP ASAP PLS GETTING TIMED

Mathematics
1 answer:
AleksandrR [38]3 years ago
7 0
The answer is C, (-5,1)
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A computer training institute has 625 students that are paying a course fee of $400. Their research shows that for every $20 red
Anastasy [175]
1.
If no changes are made, the school has a revenue of :

625*400$/student=250,000$

2.
Assume that the school decides to reduce n*20$.

This means that there will be an increase of 50n students.

Thus there are 625 + 50n students, each paying 400-20n dollars.

The revenue is: 

(625 + 50n)*(400-20n)=12.5(50+n)*20(20-n)=250(n+50)(20-n)

3.

check the options that we have, 

a fee of $380 means that n=1, thus 

250(n+50)(20-n)=250(1+50)(20-1)=242,250   ($)


a fee of $320 means that n=4, thus

 250(n+50)(20-n)=250(4+50)(20-4)=216,000    ($)


the other options cannot be considered since neither 400-275, nor 400-325 are multiples of 20.

Conclusion, neither of the possible choices should be applied, since they will reduce the revenue.
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3 years ago
What is the surface area of the rectangular prism?
tankabanditka [31]

Answer:

The answer is 52

Step-by-step explanation:

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Please help, I can't figure out this graphing stuff.<br><br> graph y = x/2 - 3
ivanzaharov [21]
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Paul's mp3 player has a total of 852 songs. He has 4 different groups of songs. If he puts an equal number of songs in each grou
Igoryamba

Answer:  

There will be 213 songs in each group.

Step-by-step explanation:

Suppose, the number of songs in each group is  x

As he has 4 different groups of songs, so the t<u>otal number of songs in all 4 groups</u> will be:  (4*x)= 4x

Given that, the mp3 player has a <u>total of 852 songs</u>. So, the equation will be........

4x=852\\ \\ x=\frac{852}{4}=213

So, there will be 213 songs in each group.

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Which of the following choices will simplity (8 - 5)2 - 19 + 42​
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