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Olin [163]
2 years ago
9

Help me i need this for a review

Mathematics
1 answer:
stira [4]2 years ago
8 0

Answer:

26

Step-by-step explanation:

Examples:

1 x 13 = 13

3 x 13 = 39

Second blank:

2 x 13 = 26

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Use a system of equations to solve this problem.
emmainna [20.7K]
We have to set up 2 equations:
A) x + y = 10 liters
B) .05x + .25y = 10 * .10

Multiply equation B) by -4
B) -.2x  - y = -4 then add to equation A)
A) x + y = 10 liters
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x = 7.5 liters of 5%
y = 2.5 liters of 25%

6 0
3 years ago
What are the real and imaginary parts of the complex number?
Hoochie [10]

Answer:

  • real: -9
  • imaginary: 8

Step-by-step explanation:

The imaginary number <em>i</em> signifies the imaginary part of a complex number. The imaginary part of the number is the coefficient of <em>i</em>. The real part is everything else.

__

In (a +bi), (a) is the real part, and (b) is the imaginary part.

In (-9 +8i), (-9) is the real part and (8) is the imaginary part.

  • real: -9
  • imaginary: 8
6 0
1 year ago
Just give me the answer
Hoochie [10]

Answer:

1/32768

Step-by-step explanation:

I don't know how to explain it to you. I am sorry.

8 0
3 years ago
How much is <br>30-[(19x2)-(3x4)]
aliina [53]
-20 is ur answer because u do the stuff in the "()" first
5 0
2 years ago
What are the terms of 12x^2
alexandr402 [8]

The terms of 12x^2=36=6

6 0
3 years ago
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