100 pens cost x dollars. how many pens can be purchased for 50 cents, assuming the same rate?
1 answer:
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Answer: Product of powers
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The product of powers rules basically says that two powers, let's call them
and 
, with the same base (a) multiplied together equals 
.
In your problem you can see that
and 
are being multiplied together and the exponents are being added, which is what the "product of powers" law says.
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The product of powers rules basically says that two powers, let's call them
In your problem you can see that