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ollegr [7]
2 years ago
15

What's the percent of change for 30 to 90

Mathematics
1 answer:
Agata [3.3K]2 years ago
6 0
First of all, remember that 100% is one whole thing.

Then.look at the problem, and see that 90 is three times 30.

-- 90 is 300% <em><u>of</u></em> an entire 30 .

-- To go from 30 to 90, you have to increase the 30 <em>by</em> 200% of itself.
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When you factor an expression, you are looking for numbers that every term in the expression can divide by (and give a whole number).

Just by looking at the terms, you see they both have $ you can factor out. They can both also be divided by 8. This is called taking out a common factor.

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This expression can't be factored more because there are no common factors. The binomial also doesn't have square numbers for example, which might make a case where you need to factor further with different methods.

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3 years ago
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