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Wewaii [24]
3 years ago
13

6) 9x - 7y = -4 18x - 14 y = 10 A) (8, -1) C) (-8,-8) B) (-8,-1) D) No solution

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0

Answer:

D). No solution

Step-by-step explanation:

9x - 7y = -4

18x - 14 y = 10

9x - 7y = 5

9x - 7y = -4

9x - 7y = 5

__________--

0 = -9

No solution

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nalin [4]
196 + x = 500

Subtract 196 from both sides:
196 on the left is cancelled out, and you’re left with x = 304

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6 0
3 years ago
Solve: <br><br> 4(n-7) -2 (n+3)-15n
wolverine [178]

Answer:

solved

Step-by-step explanation:

4n-28 -2n -6 -15n

-13n-34

-(13n+34)

8 0
3 years ago
a math student is standing 40 feet from the base of a water tower. the angle of elevation from her horizontal line of sight is 7
Lerok [7]

9514 1404 393

Answer:

  128 ft

Step-by-step explanation:

The height of the tower above eye-height is related to the angle by ...

  Tan = Opposite/Adjacent

  tan(72°) = (tower height above eye height)/(40 ft)

  tower height above eye height = (40 ft)×tan(72°) = 123 ft

Since eye height is 5 ft, the total height of the tower from the ground is ...

  tower height = eye height + height above eye height

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4 0
3 years ago
08- O ponto de encontro do eixo x com eixo y , indicado pelo par ordenado ( 0;0) . É Chamado de : *
skad [1K]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Tracy McKinney is a disc jockey at radio station WMMM. Her annual salary is $52,750. What is her monthly salary?
attashe74 [19]
Okay, so since her annual salary is <span>$52,750 (the amount she gets a year, all twelve months combined) you're trying to find how much she gets monthly. That would mean we would have to divide her annual salary by 12 to find her monthly salary.

</span>$52,750 ÷ 12 = 4,395.8333333333333
<span>
And since that's a (bothersome) repeating decimal, we're going to have to round it. Once rounded, you would get $</span>4,395.83. That is her monthly salary.
5 0
3 years ago
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