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IrinaVladis [17]
3 years ago
12

Factor out the greatest common factor 15x^2-21x ^=exponent

Mathematics
1 answer:
gavmur [86]3 years ago
4 0

Answer:

3x

Step-by-step explanation:

3x(5x-7)

brainliest!

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Every 100 tons of the earth's crust contain about 28 tons of silicon. What is the ratio of the weight of silicon to the weight o
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<h3>Answer:</h3>
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<h3>Explanation:</h3>

The wording "the ratio of A to B" means A/B.

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Then "the ratio of the weight of crust to the weight of silicon" means ...

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