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FinnZ [79.3K]
3 years ago
9

Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. 2x + 6y = 6 3x + 9y = 9

Mathematics
1 answer:
Elan Coil [88]3 years ago
5 0
The answer is x=-3/40 :)
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Morgan made a mistake when subtracting the rational expressions below.
Nat2105 [25]

Answer : D

\frac{3t^2-4t+1}{t+3} - \frac{t^2+2t+2}{t+3}

The denominators are  same

So we combine the numerators

\frac{(3t^2-4t+1)-(t^2+2t+2)}{t+3}

To remove parenthesis we distribute negative sign inside the second parenthesis

\frac{3t^2-4t+1-t^2-2t-2)}{t+3}

\frac{3t^2-4t+1-t^2-2t-2)}{t+3}

\frac{2t^2-6t-1)}{t+3}

Morgan made a mistake. He forgot to distribute the negative sign

Morgan forgot to distribute the negative sign to two of the terms 2t  and 2 inside second parenthesis

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3 years ago
What does z equal <br> 1 - z/5 = 9
bixtya [17]
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3 years ago
Maria received a $90 gift card for a coffee store. She used in buying some coffee that costs $7.81 per pound. After buying the c
sergiy2304 [10]

Answer:

Im not sure but im going to try

Step-by-step explanation:

First you subtract $7.81 from $90 until you get to $50.95 and then you count how many times you subtract and your answer is 5 pounds of coffee.

5 0
3 years ago
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A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park is 280 yards long. What is the area of
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Answer:

area=56000 yards²

Step-by-step explanation:

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120 degrees the sum of all is 720

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