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allsm [11]
3 years ago
11

How do you know if an equation represents a proportional relationship?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
8 0

If it creates a straight line on a graph, it is proportional

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Which proportion can be used to find 45% of 300
Volgvan

100/x=300/45  Factor out  100/x=15×20/15×3  Cancel common factor   100/x=20/3  100(3)=20(x)  300=20x  300/20=X  15=x

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Coficient of x^2 in -4x^2
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If the demand for a product decreases, what is likely to happen?
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Using the percentage concept, supposing 520 out of 1000 respondents believe in global warming, 52% of respondents agreed that global warming is occurring.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = \frac{a}{b} \times 100\%

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P = \frac{520}{1000} \times 100\% = 52\%

More can be learned about the percentage concept at brainly.com/question/10491646

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