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motikmotik
3 years ago
7

Solve this problem using substitution

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0
Solving for (x,y)
(x-y=8)
(x=y-8) & (y=x-8)

solving for (y,x)
(2y=2x-16)
(y=x-8)&(x=y+8)


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You are basically just adding, so combine like terms.

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For the reaction 2Fe + O2 → 2FeO, how many grams of iron oxide are produced from 42.4 mol of iron?
Butoxors [25]

In the balanced reaction

2 Fe + O₂   →   2 FeO

2 moles of iron (Fe) react with 1 mole of molecular oxygen (O₂) to produce 2 moles of iron oxide (FeO). The ratio of Fe to FeO is 1-to-1, so if one starts with 42.4 mol of Fe, one will end up with the same amount of FeO, 42.4 mol.

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This is not a multiple choice question. Please help!
Shkiper50 [21]
Complentary angle = 90 degrees
 
90 - 16 = your answer
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Is the answer C ; y= -3x-1
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Answer:

I believe you are correct

Hope This Helps!      Have A Nice Day!!

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