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MatroZZZ [7]
3 years ago
9

6 out of every 15 flying insects are butterflies If I saw 96 butterflies how many flying insects were there?

Mathematics
1 answer:
Lorico [155]3 years ago
5 0
I think 240 insects... because 9/15= 0.4 so divide 96/0.4 and u get 240
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X^2-4x-11=0 completing the square
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Hey there! I'm happy to help!

A proportional equation follows the form y=kx, where k is the constant of proportionality.

Answer 1 is wrong because there is something added.

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3 is incorrect as it does not follow this format.

4 is correct as it follows the format (k is 1)

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6 is not correct because there is a 1 added, which does not follow the format.

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4 0
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Answer:

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We have to find how many passwords with 4 different digits can we write with the numbers 1, 2, 3, 4, 5, and 6.

Firstly, it must be known here that to calculate the above situation we have to use Permutation and not combination because here the order of the numbers in a password matter.

Since we are given six numbers (1, 2, 3, 4, 5, and 6) and have to make 4 different digits passwords.

  • Now, for first digit of the password, we have 6 possibilities (numbers from 1 to 6).
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So, the number of passwords with 4 different digits we can write = 6 \times 5 \times 4 \times 3  = 360 possibilities.

Hence, we can write 360 distinct passwords using the numbers 1, 2, 3, 4, 5, and 6.

4 0
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