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2 years ago

Find the greatest common factor of 9n and 7n^3

Mathematics

1 answer:

stiks02 [169]2 years ago

7 0

The answer is: GCF(9, +7^3) = 1
Explanation:
9 = 3^2

+7 = +7×7

3 = 3

GCF = 1

9 / 1 = 9

+7 / 1 = 7

3 / 1 = 3

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2 years ago

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Nana76 [90]

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2 years ago

Are the graphs of the lines in the pair parallel ? Explain.

Julli [10]

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2 years ago

A refrigerator costs $580 a year to run. A family purchases a new one for $1200 that will save them 22% annually in energy costs

NeTakaya

Answer:

It will take nine years and four months for the refrigerator to pay for itself.

Step-by-step explanation:

The new refrigerator which costs $1200, saves the family 22% annually in energy cost.

Since the old refrigerator costs $580 to run, we want to determine how many years it will take for 22% of $580 per year to make $1200.

22% of $580

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That is, it saved then $127.6 per year.

Now,

$1200/127.6

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