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Dmitry_Shevchenko [17]
4 years ago
13

How many tutors does the academy need if it has 120 students ?

Mathematics
2 answers:
kakasveta [241]4 years ago
8 0
120 / 72 = 1 2/3

5/3 x 6/1 = 30/3 = 10

The academy needs 10 tutors.
Eva8 [605]4 years ago
3 0
10 tutors.

divide 120 by 72 to get 1.66666...
Then multiply 1.66666... by 6, because there is 6 tutors for every 72 students, to get 10 tutors.

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Express the polynomial 6x^3-x^3+2x-4 in standard form.
Dennis_Churaev [7]
It was just simplifying, was basically in standard form already.

7 0
3 years ago
A rectangular parking lot at the megamall is 7/10 mile long and 1/4 mile wide. How much fencing is needed to enclose the lot?
iris [78.8K]
Greetings!

"<span>A rectangular parking lot at the mega-mall is 7/10 mile long and 1/4 mile wide. How much fencing is needed to enclose the lot?"...

This question is essentially asking to solve for the perimeter. The formula for the perimeter of a rectangle is: 
</span>2(l+w)

Input the information we already know:
2(7/10+1/4)
Find A common denominator.
2(14/20+5/20)
Simplify.
2(19/20)
2/1(19/20)
38/20
Reduce to Lowest Terms.
=19/10
or
=1 9/10

1 9/10 miles of fencing will be required to enclose the entire lot.

Hope this helps.
-Benjamin
5 0
4 years ago
Arely has 4 fewer than twice as many music files as Valerie. They have a combined number of 86 music files. Which is the number
tankabanditka [31]

Answer:

56 music files

Step-by-step explanation:

From the above question:

Let the number of music files

Arely has = x

Valerie has = y

Arely has 4 fewer than twice as many music files as Valerie.

x = 2y - 4

They have a combined number of 86 music files.

x + y = 86

We substitute 2y - 4 for x in the above equation

2y - 4 + y = 86

3y - 4 = 86

3y = 86 + 4

3y = 90

Divide both sides by 3

3y/3 = 90/3

y = 30

Hence, Valerie has 30 music files.

The number of music files that Arely has is calculated as:

x = 2y - 4

x = 2(30) - 4

x = 60 - 4

x = 56

Arely has 56 music files

8 0
3 years ago
How many solutions does 2(x-6)+2x=4(x-3) have?
AveGali [126]

Answer:

Infinite

Step-by-step explanation:

2(x-6)+2x=4(x-3) would turn into:

2x-12+2x=4x-12 which would turn into:

4x-12=4x-12 then you could keep going if you wanted:

add 12 to both sides and subtract 4x from both sides:

0=0 (and zero does equal zero so it is unlimited solutions)

3 0
3 years ago
What is 4% of 50,000
tamaranim1 [39]
4% of 50000
(4/100) * 50000
2000
7 0
3 years ago
Read 2 more answers
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