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d1i1m1o1n [39]
3 years ago
10

Write each repeating decimal using bar notation.

Mathematics
1 answer:
Ahat [919]3 years ago
3 0

Answer:

  ___

2.034

over .034

     _

0.92

over 2

  _

0.7

over 7

Step-by-step explanation:

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PLEASE HELP!! pic attached (30 points)
BaLLatris [955]

Answer:

Step-by-step explanation: the answer to all of them is b&:&3$,48x

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8 0
3 years ago
Isabella save 2 nickels today, if she doubles the number of Nicole, she saves every day, how many days, including today, will it
Elden [556K]

Answer:

  8 days

Step-by-step explanation:

On day 8, Isabella will save 256 nickels, bringing her total to 510.

_____

The number of nickels saved on day n is 2^n. The total is 2^(n+1)-2.

_____

The above can be written down from your knowledge of binary sequences. If you want a more formal development, read on.

__

The number of nickels saved on day n is a geometric sequence with first term 2 and common ratio 2. The n-th term of the sequence is ...

  an = a1·r^(n-1) = 2·2^(n-1) = 2^n

The sum of n terms of the sequence is ...

  S = a1(r^n -1)/(r -1) = 2(2^n -1)/(2-1)

  S = 2^(n+1) -2

__

We want S > 500, so ...

  500 < 2^(n+1) -2

  502 < 2^(n+1)

  251 < 2^n

  log(251) < n·log(2)

  n > log(251)/log(2)

  n > 7.97 . . . . . . . . 8 days or more to save more than 500 nickels

3 0
3 years ago
Plz help help help help help
Crank

Answer:

is should  be 11  hours hope it helps

Step-by-step explanation:

sorry if wrong people i didnt mean to tho

8 0
3 years ago
3x−(2x+1) for x=7 5/13
marusya05 [52]

Answer:

83/13 or 6.3846

Step-by-step explanation:

i subsituted for x and used a calculator

8 0
3 years ago
Reading test is compared for two students. The mean of Alice's reading test is 82. The mean of Adam's reading test is 85. What c
zalisa [80]

Answer:

i think it's

Adam averages better than Alice

Alice averaged less than Adam

Step-by-step explanation:

7 0
3 years ago
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