KylexChaos
  • KylexChaos
Medal and Fan! Don't want Answers! Just help! Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position changes in feet per minute? Select all that are correct. A. −(18/3) B. −18/3<<< C.−18/−3 D. 6 <<<<< E.−6
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Not really sure about the answers, since they are formatted poorly, but "rate of position change" is basically a fancy way of saying "speed". Do you know the formula for speed?
KylexChaos
  • KylexChaos
Yes I know the formula for speed
KylexChaos
  • KylexChaos
Also, I updated the answers because I typed them wrong.

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More answers

anonymous
  • anonymous
So you need to calculate the speed here. You know that she is descending, so her speed must be negative (because she goes "down").
MrNood
  • MrNood
well - your choices cannot be correct since one is positive , and ht eother is negative.
KylexChaos
  • KylexChaos
Oh, that's right...
KylexChaos
  • KylexChaos
So I'd say C and E, I'm not too sure about A although because the 3 is a positive.
MrNood
  • MrNood
but on the assumption that 'down' is negative (this is only a convention - you COULD choose 'Up' is positive) then choose all the answers that are negative and equivalent to -18ft/3mins
KylexChaos
  • KylexChaos
How do I get the equivalence to -18ft/3mins
MrNood
  • MrNood
c is -18/-3 is this positive or negative? (and your last question? it's simple division)
KylexChaos
  • KylexChaos
C is a positive
KylexChaos
  • KylexChaos
So -18 divided by 3 = -6
MrNood
  • MrNood
yes but 3 of the answers are equivalent to that
KylexChaos
  • KylexChaos
So then my answers I have are C and E, correct?
MrNood
  • MrNood
you just told me that C is positive
KylexChaos
  • KylexChaos
Oh wait I meant B.
KylexChaos
  • KylexChaos
B and E, I got my answer letters mixed up.
KylexChaos
  • KylexChaos
B and E seem to have the most sense
MrNood
  • MrNood
3 of the answers are equivalent
KylexChaos
  • KylexChaos
3? Hm..
KylexChaos
  • KylexChaos
A
KylexChaos
  • KylexChaos
I believe I did my math correct
MrNood
  • MrNood
-(18/3) = -1 * (18/3) = -1(6) = -6 you are correct
KylexChaos
  • KylexChaos
Thank you!!!

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