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Alexeev081 [22]
2 years ago
12

QUESTION 4

Mathematics
1 answer:
zlopas [31]2 years ago
5 0

Answer:

17,912,62 it that answer

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Solve the system by substitution.<br><br> 6x + 3y = -6<br> 2x + y = -2
Mariana [72]
Solutions 

First Lets solve for this equation 6x + 3y = -6&#10; 

6x + 3y = -6&#10; 

6x+3(-2-2x)=-6&#10;&#10; &#10; 

-6=-6 

Therefore this given equation is a <span>dependent system. 
</span>
<span>Solve for </span>2x + y = -2 

2x+y=-2 

y=-2-2x&#10;&#10; &#10;&#10; &#10; 

There are too many solutions to these equations. 


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3 years ago
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Cantaloupes are four for $ 9, how many can you buy for $25? which proportion is properly set up?
Lemur [1.5K]

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you can buy 2 two cantaloupes.

you'll have $7.00

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3 years ago
Sarah's hair appointment is 30 miles away. How fast must she travel to get there in 60 minutes?
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Step-by-step explanation:

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3 years ago
Examine the system of equations. y = 3 2 x − 6, y = −9 2 x + 21 Use substitution to solve the system of equations. What is the v
nadezda [96]

Answer:

<h2>y = -4/9</h2>

Step-by-step explanation:

Given the system of equations y = 3/2 x − 6, y = −9/2 x + 21, since both expressions are functions of y, we will equate both of them to find the variable x;

3/2 x − 6 = −9/2 x + 21,

Cross multiplying;

3(2x+21) = -9(2x-6)

6x+63 = -18x+54

collecting the like terms;

6x+18x = 54-63

24x = -9

x = -9/24

x = -3/8

To get the value of y, we will substitute x = -3/8 into any of the given equation. Using the first equation;

y = 3/2x-6

y = 3/{2(-3/8)-6}

y = 3/{(-3/4-6)}

y = 3/{(-3-24)/4}

y = 3/(-27/4)

y = 3 * -4/27

y = -4/9

Hence, the value of y is -4/9

4 0
3 years ago
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3(5j+2)=2(3j-6) how do i do this
ohaa [14]

3(5j+2)=2(3j-6) do distributed to remove parenthesis  15j+6=6j-3 . Then move all j to left side and the second term to right side 15j-6j=-3-6. Now solve both sides  9j= -9. Now divide both sides by 9 to get j alone to j =  -1

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3 years ago
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