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yulyashka [42]
3 years ago
7

One model of earths population growth is

Mathematics
1 answer:
gayaneshka [121]3 years ago
4 0

Answer: a chicken farm

Step-by-step explanation:

You might be interested in
If 4x +2y=200 and 2x+7y=400 how do you solve for x and y
Mandarinka [93]
This is what you call systems of equations. Basically were the two equations cross on a graph is the solution
 
You can solve this multiply ways... Graph, table, Substitution, elimination...

I will choose elimination because it is the easiest for how the equations are set up.

So

4x+2y = 200     2x+7y=400

First I take the second equation and multiply it by 2..
2(2x) + 2(7y)= 2(400)

4x+14y=800 

Now I can just subtract the two equations



  4x+2y = 200
-(4x+14y=800)
____________
-12y=-600

Solve for y

-12y/-12=-600/-12

y=50

Plug back in

4x+2y = 200

4x+2(50)=200
4x+100=200
     -100  - 100
4x=100

4x/4=100/4

x=25

(25,50)

To check if you are correct you can use something like desmos (online graphing tool) and see if (25,50) is were the two lines cross.

You can also use substitution if you prefer.


6 0
3 years ago
In one month Miranda earned $800 at her part-time job, and $70 was withheld for federal income tax. Suppose she earns $1200 next
My name is Ann [436]
The answer is 105 dollars

7 0
3 years ago
Find the value of the trigonometric ratio. make sure to simplify the fraction if needed.
belka [17]

Answer:

36/39

Step-by-step explanation:

Cos(theta) = Base/Hypotenuse

Cos(X) = 36/39

6 0
3 years ago
19 divided by 462, with remainder please
V125BC [204]

Answer:

0 remainder 19

Step-by-step explanation:

5 0
3 years ago
Write the fraction or mixed number as a percent 1-1/4
IceJOKER [234]
I am pretty sure it would equal 3/4 since 1 - 1/4 = 3/4     3/4 = 75%<span />
5 0
3 years ago
Read 2 more answers
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