Mathematics: The numbers 1, 2, 3, 4, 5, and 6 are placed in a line. How many even numbers can be made from these digits?

The numbers 1, 2, 3, 4, 5, and 6 are placed in a line.

Ответ:

babbybronx

18.06.2021

360

Explanation:

We have 3 even values (2,4, and 6) so this is the number of choices we have for the units digit. Recall that a number is even if the units digit is 0,2,4,6 or 8.

Once we have the units digit selected, we have 6-1 = 5 choices for the first slot, 6-2 = 4 choices for the second slot, and so on until we get down to 6-5 = 1 choice for the fifth slot

We could write it out like this

slot one = 5 choicesslot two = 4 choicesslot three = 3 choicesslot four = 2 choicesslot five = 1 choiceslot six = units digit = 3 choices

Multiply those values out: 5*4*3*2*1*3 = 360

There are 360 different even numbers possible.

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Ответ:

gloria457

30.07.2020

Mathematics

$26 {2 { \times 59 < {215y9 { | \sqrt[6.y955. < 1 - = 89.. {52 {1 { {26 2 {yy441 {963 - . \\ }^{2} \times \frac{?}{?} }^{?} }^{2} \times \frac{?}{?} \times \frac{?}{?} }^{?} }^{?} }^{?} \times \frac{?}{?} ]{?} | }^{2} }^{?} \times \frac{?}{?} }^{?} }^{2} lol$

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The numbers 1, 2, 3, 4, 5, and 6 are placed in a line. How many even numbers can be made from these digits?

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