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3 years ago

8

a cell phone carrier charges flat fee 40 dollars total cost talking 20 minutes 41 dollars what is the rate of change of the cost

per minute

2 answers:

Mashutka [201]3 years ago

8 0

0.05 per minute you can just divide 1 by 20 to find it

Nikitich [7]3 years ago

3 0

2 dollars per minute? The question isn't really very clear...

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