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Elenna [48]
3 years ago
7

Solve this question ​

Mathematics
2 answers:
Natalija [7]3 years ago
8 0
I think the answer is 80
ryzh [129]3 years ago
7 0

Answer:

80

Step-by-step explanation:

Initial ratio:

Teachers to students

1 : 15

Ratio after:

Teachers to students

3 : 40

The number of students did not change, so we can make the students of the initial ratio and the students of the ratio after the same.

1 : 15 =  8 : 120

3 : 40 = 9 : 120

120 units = 1200

1 unit = \frac{1200}{120} =10

Initial teachers = 8 units = 8*10=80

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Minchanka [31]

Answer:

Step-by-step explanation:

2k+10   | Both terms share the common factor two, so you can take it out (divide both terms by 2)

2(k+5)  | Now if you use the Distributive Property to double check, you get 2k+ 10 again

4 0
3 years ago
How many pounds per cup is shown in the proportional relationship below
Lilit [14]
4 pounds per 20 cups.
3 0
3 years ago
The distance between points (5,9) and (-7,-7)
ankoles [38]
You need to find the change in x and y 

change in x = 12 
change in y = 16 

to find the distance you use a^2+ b^2 = c^2
or in this case x^2 + y^2 = d^2

144+256 = 400 

\sqrt{400}

=20 
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I hope this helps!
4 0
3 years ago
The Sugar Sweet Company is going to transport sugar to market. It will cost $2600 to rent trucks, and cast an additional 100 for
allochka39001 [22]

Answer:

26.00

Step-by-step explanation:

3 0
3 years ago
What is the result of subtracting the second equation from the first?<br><br>−4x−2y=-2<br><br>x−2y=9
FrozenT [24]
The end result would be ( 11/5 , -15/5)
8 0
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