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Anna71 [15]
3 years ago
15

Solve for z. Z<-9 Z>-9

Mathematics
2 answers:
Alex73 [517]3 years ago
3 0

Answer:

z>-9

Step-by-step explanation:

Elenna [48]3 years ago
3 0

Answer: z > -9

Step-by-step explanation:

\frac{-2z-3}{3} < 5     multiply each side by 3  to get  

-2z -3 < 15    now add  3 to both sides

      +3   +3

-2z < 18    Divide both sides by -2. Since your dividing by a negative number the inequality sign will change

z> -9

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Step-by-step explanation:

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An investment gains $5 in value on one day. The next day, it loses $3 in value. Represent each of these using integers.
kap26 [50]

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+5 and -3

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Answer:

2) x = -2 , y = 2

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Step-by-step explanation:

Solve the following system:

{-2 x - 3 y = -2

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Hint: | Perform a substitution.

Substitute y = 2 x + 6 into the first equation:

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y = 2 x + 6

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y = 2 x + 6

Hint: | Choose an equation and a variable to solve for.

In the first equation, look to solve for x:

{-8 x - 18 = -2

y = 2 x + 6

Hint: | Isolate terms with x to the left hand side.

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Hint: | Solve for x.

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Hint: | Perform a back substitution.

Substitute x = -2 into the second equation:

Answer: {x = -2 , y = 2

4 0
3 years ago
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3 years ago
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Answer:

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Step-by-step explanation:

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round to 9

7 0
3 years ago
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