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Brums [2.3K]
3 years ago
12

Carlos is walking on a moving walkway. His speed is given by the function

Mathematics
1 answer:
oee [108]3 years ago
8 0
Well, for 20 you just add them, to get 4x^2-x+3. For 21, you do a substraction: 2x^2+7x-11. It'd take him quite some time (does this one even have zeros? :)) )
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Peter has money in two savings accounts. One rate is 6% and the other is 14%. If he has $900 more in the 14% account and the tot
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Answer:

  • $1375 at 14%
  • $475 at 6%

Step-by-step explanation:

Let x represent the amount Peter invested at 14%. Then (x-900) is the amount he invested at 6%. His total interest earned is ...

  0.14x + 0.06(x -900) = 221

  0.20x = 275 . . . . . . . . . . . . . . . . add 54, simplify

  x = 1375 . . . . . . . . . . . . . . . . . . . .divide by 0.2; amount invested at 14%

  (x-900) = 475 . . . . . . . . . . . . . . . amount invested at 6%

Peter invested $475 in the 6% account and $1375 in the 14% account.

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3 years ago
A rectangle prism has a square base of 12 inches and a height of 7 inches. What is the volume of the prism?
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1,008 is the answer I got
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I need help my dang self
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The estimated sum of 857 + 234 is
Llana [10]

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1,091

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Question 1 of 10
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D

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