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Alik [6]
4 years ago
12

Solve this system of equations. 2x + 2y + 7z = -1 2x + y + 2z = 2 4x + 6y +z = 15

Mathematics
1 answer:
saw5 [17]4 years ago
3 0

Answer:

x =1

y = 2

z = -1

Step-by-step explanation:

I Hope it helps. Please if you need any clarification, let me know .

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A car salesman has 8 used cars for sale. They have a mean price of $4500. What is the total price of all 8 cars?
muminat

Answer:

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Step-by-step explanation:

We have a mean price of $4500 this means that in the 8 cars we have cars with higer and lower prices than $4500 but that if we have to give the same price to 8 cars that would be $4500. Then to know the total price of the all 8 cars we just have to multiply:

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7 0
3 years ago
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Answer:

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Step-by-step explanation:

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expeople1 [14]
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8 0
3 years ago
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Step-by-step explanation:

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