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marshall27 [118]
3 years ago
15

How many 4 digit codes are possible if the first digit cannot be 0 and digits can be repeated?

Mathematics
1 answer:
bezimeni [28]3 years ago
4 0

Answer: 9,000

Step-by-step explanation: there are 9 number options for the first digit and 10 for the other 3, so 9x10x10x10=9000

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Estimate a 15% tip on a dinner bill of $31.53 by first rounding the bill amount to the nearest ten dollars.
Nookie1986 [14]

Answer:

Should be around 4.5

Step-by-step explanation:

If you round 31.53 to the nearest ten dollars, you get 30, 15 percent of 30 is 4.5

6 0
3 years ago
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-114=-5x-2(4x+18)<br> ????????
SVETLANKA909090 [29]

Primeiro multiplica o -2 com tudo que tem dentro do parenteses (chuveirinho)  -114 = -5x -2(4x+18)

-2 . 4x = -8x        +     -2 . 18 = -36        =   -8x-36


Agora soma os números com incógnitas (no caso x)

-114 = - 5x - 8x -36    


Joga a incógnita do outro, tornando positiva

-114 = -13x - 36            

13x -114 = -36


e o 114 do outro lado, ficando positiva também  

13x -114 = -36

13x  = - 36 + 114

13x = 78

x = 78 /13

x= 6


ESPERO TER AJUDADO :)


8 0
3 years ago
Which pitcher had speeds that were the most consistent?
Ann [662]

Answer:

b

Step-by-step explanation:

7 1
3 years ago
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Ted has some red blocks and some green blocks.
MakcuM [25]

A red block is 2 ounces and a green block is 4. This would make the answer 6 for the total weight of one of each block.

3 0
3 years ago
If n(A) equals 100 and n(B) is equals to 120 and A is the subset of B, find the value of an n(A union B)
shepuryov [24]

its super easy just open your textbook answer key its there

4 0
1 year ago
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