anonymous
  • anonymous
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Mathematics
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate of change during the 40-minute time of talk? Total minutes of talk time Monthly cost of cell phone 0 $14.95 10 $15.95 20 $16.95 30 $17.95 40 $18.95 The average rate of change is $1.00, meaning that for every ten minutes of talk time, the monthly bill increases by $1.00. The average rate of change is $1.00, meaning that for each minute of talk time, the monthly bill increases by $0.10. The average rate of change is $0.10, meaning that for every ten minutes of talk time, the bill increases by $0.10. The average rate of change is $0.10, meaning that for each minute of talk time, the monthly bill increases by $0.10.
anonymous
  • anonymous
@dan815
anonymous
  • anonymous
@hartnn

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AlexandervonHumboldt2
  • AlexandervonHumboldt2
you see that the difference between 15.95-14.95, 16.95-15.95, 17.95-16.95 and 18.95-17.5 all equals to 1$. each 10 min=1$ what do you think the answer is?
AlexandervonHumboldt2
  • AlexandervonHumboldt2
woops i meant 18.95-17.95 instead of 18.95-17.5
anonymous
  • anonymous
I think it is A.
AlexandervonHumboldt2
  • AlexandervonHumboldt2
yes you are correct
anonymous
  • anonymous
Thank you!!!
AlexandervonHumboldt2
  • AlexandervonHumboldt2
np
anonymous
  • anonymous
it wasn't A
anonymous
  • anonymous
you have to divide the difference in cost by the difference minutes. You know the cost changes by $1/month. the minutes are changing by 10. rate of change = 1/10
anonymous
  • anonymous
So B?
anonymous
  • anonymous
no. what's 1/10 as a decimal?
anonymous
  • anonymous
idk 0.1?
anonymous
  • anonymous
yeah, that's your rate of change
anonymous
  • anonymous
so every 1 minute more of talk adds $0.10 to the bill
anonymous
  • anonymous
Sooooo B?
skullpatrol
  • skullpatrol
Don't question yourself, instead convince yourself you have the right answer.
anonymous
  • anonymous
YES BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB????
anonymous
  • anonymous
does that match the rate of change you found?
anonymous
  • anonymous
Im confused because he said no when i said B so idk witch one it is.
anonymous
  • anonymous
A) The average rate of change is $1.00, meaning that for every ten minutes of talk time, the monthly bill increases by $1.00. B) The average rate of change is $1.00, meaning that for each minute of talk time, the monthly bill increases by $0.10. C) The average rate of change is $0.10, meaning that for every ten minutes of talk time, the bill increases by $0.10. D) The average rate of change is $0.10, meaning that for each minute of talk time, the monthly bill increases by $0.10.
anonymous
  • anonymous
B correct?
skullpatrol
  • skullpatrol
Only YOU can remove that question mark.
anonymous
  • anonymous
????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
skullpatrol
  • skullpatrol
lol
anonymous
  • anonymous
thats my brain rn
anonymous
  • anonymous
ok. starting from the top, the rate of change is \[\frac{ y_2-y_1 }{ x_2-x_2 }\] Pick two points from your table, the y's are the cost and the x's are the minutes
anonymous
  • anonymous
Its b
skullpatrol
  • skullpatrol
that is the nature of math
anonymous
  • anonymous
Happy no questiomark @skullpatrol
skullpatrol
  • skullpatrol
good job :-)

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