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s2008m [1.1K]
3 years ago
11

What is a fraction of 42 is 7

Mathematics
1 answer:
kramer3 years ago
3 0
\frac{7}{42}\ of\ 42\ is\ equal\ 7\\\\check:\frac{7}{42}\cdot42=\frac{7}{42}\cdot\frac{42}{1}=\frac{7}{1}=7
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How many solutions does this system have?
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Answer:

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Step-by-step explanation:

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∵ x - y = -4 ⇒ (1)

∵ 3x + y = 8 ⇒ (2)

- Add the two equation (1) and (2) to eliminate y

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- Substitute the value of x in equation (1) or equation (2) to find

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