anonymous
  • anonymous
One cell phone plan costs $39.95 per month. The first 500 minutes of usage are free. Each minute thereafter costs $.35. Write a rule that describes the total monthly cost as a function of the number of minutes of usage (over 500 minutes). Then find the number of minutes of usage over 500 minutes for a bill of $69.70?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Let c=cost and m=minutes of usage(over 500 minutes) c=.35m+39.95
anonymous
  • anonymous
So to find the number of minutes over 500 for a bill of $69.70, substitute 69.70 into the equation for c and solve for m
anonymous
  • anonymous
c = $39.95 + $0.35 e Now to find the number of minutes over 500 in a bill of $69.7 $69.7 = $39.95 + $0.35 e $29.75 = $0.35e $29.75 / $0.35 = e 85 min = e The person talked an extra 85 min over 500 min, or a total of 585 minutes used.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Yep

Looking for something else?

Not the answer you are looking for? Search for more explanations.