3 years ago

Which is the correct answer and pls explain why

Mathematics

1 answer:

Elina [12.6K]3 years ago

7 0

I think n2+2
and i don’t really know how to explain

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5x + 4y +3z = 14 x = 3z -22 z = 6 What is the y-value of the solution?

Lemur [1.5K]

X = 3z - 22
z = 6
5x + 4y + 3z = 14
5 (3z - 22) + 4y + 3 (6) = 14
15z - 110 + 4y + 18 = 14
15 . 6 - 110 + 4y + 18 = 14
90 - 110 + 4y + 18 = 14
90 - 110 + 18 - 14 + 4y = 0
-16 + 4y = 0
4y = 16
y = 4

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3 years ago

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Answer:

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Step-by-step explanation:

we know that

1 mile= 1.61 kilometers

To convert 1 kilometer to miles

use proportion

1/1.61 mi/km=x/1 mi/km

x=1 mi/1.61 km

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Step-by-step explanation:

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