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Vladimir79 [104]
3 years ago
6

Solve the proportion below. 9/x=1/2

Mathematics
1 answer:
KiRa [710]3 years ago
6 0

Answer:

X=18

Step-by-step explanation:

\frac{9}{x}  =  \frac{1}{2}  \\ 9 \times 2 = x \times 1 \\ x = 18

Here you have to use cross multiplication

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If x is squared, that will be biggest by the end because it gets bigger the quickest. x^2 + 4 is always 4 greater than x^2, no matter what the value of x is.

5x+3 is always 3 greater than 5x also.

Besides that, you can rank them based on their slopes (5x < 7x < 8x, etc.)

So,
5x
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7x
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x^2
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You can also just say “eventually” means that they’re asking to find the values of each when x is really big. so just choose x=100, and plug that into each one.

So, to check that order:
5(100) = 500
5(100) + 3 = 503
7(100) = 700
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Answer:

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7 0
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