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schepotkina [342]
3 years ago
14

Which ordered pairs are solutions to the inequality. 3x+4y greater than or equal to 12

Mathematics
1 answer:
sergeinik [125]3 years ago
5 0
To find which orders pairs fit into the inequality simply substitute the variables, x & y.
A:3*8+4*(-3)>=12, yep! 12>=12
B: 3*(-5)+4*2>=12, Nope! -7 is not >= 12
C:Yep! 20>=12
D: Yep! 17>=12
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Korvikt [17]

Answer:

(9, 1)

Step-by-step explanation:

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3 years ago
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Convert 2 Liters to gallons. Use the fact that 1 gal.= 3.8L.
iris [78.8K]

we know that

1 gal.= 3.8L

we can also write as

3.8L=1 gal

Firstly, we will find for 1L

so, we can divide both sides by 3.8

\frac{3.8}{3.8} L=\frac{1}{3.8}gal

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2 years ago
What is the most efficient first step to isolate the variable term on one side of this equation?
Nat2105 [25]

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Step-by-step explanation:

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7 0
3 years ago
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Look at the picture. What is the solution WORTH 10 POINTS
Ivanshal [37]

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If you want solve:

y = -2x - 3, y = 3x + 2

-2x - 3 = 3x + 2     |+3

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-5x = 5     |:(-5)

x = -1

Put the value of x to the first equation:

y = (-2)(-1) - 3 = 2 - 3 = -1

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3 years ago
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raketka [301]

Answer:

n = -14

Step-by-step explanation:

-3(n+9)=15

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-3n - 27 = 15

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5 0
2 years ago
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