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Alex787 [66]
3 years ago
10

HELP PLEASE! a + 2 2/5 = 4 3/10

Mathematics
1 answer:
amm18123 years ago
7 0

Answer:

0

Step-by-step explanation:

4 + 0 = 0

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A padlock has the digits 0 through 9 arranged in a circle on its face. A combination for 0 1 2 3 4 6 5 7 8 9 this padlock is fou
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Answer:

The total numbers of possible combinations are 3430.

Step-by-step explanation:

Consider the provided information.

A combination for 0 1 2 3 4 6 5 7 8 9 this padlock is four digits long. Because of the internal mechanics of the lock, no pair of consecutive numbers in the combination can be the same or one place apart on the face.

Here, for the first digit we have 10 choices.

For the second digit we have 7 choices, as the digit can't be the same nor adjacent to the first digit.

For the third digit we have 7 choices, as the digit can't be the same nor adjacent to the second digit.

For the fourth digit we have 7 choices, as the digit can't be the same nor adjacent to the third digit.

So the number of choices are:

10\times 7\times 7\times 7=10\times 7^3\\10\times 343=3430

Hence, the total numbers of possible combinations are 3430.

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3 years ago
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Answer:

9.354

Step-by-step explanation:

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Hey number 8. Be super careful, less than always look at that it should be 5n-3
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