jc200000 jc200000

22-09-2020
Mathematics

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a cell phone company charges $20 fixed monthly fee and 15 cents for every minute of talk time. Write an equation for total cost ‘c’, if someone talks for ‘m’ minutes.

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jcastro466 jcastro466

22-09-2020

Answer:

i know but 20c = 15m

Step-by-step explanation:

?

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sammyoso sammyoso

22-09-2020

c=15m+20 because 15 is the constant rate of change monthly, and 20 is what you’re adding on to

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