Mathematics: Atortoise is walking in the desert. it walks for 17.92 meters at a speed of 7 meters per minute. for how many minutes does it walk?

Atortoise is walking in the desert. it walks for

Ответ:

koryhudson8124

16.01.2022

Mathematics

If the tortoise walked 17.92 meters then you divide that by 7 meters per minute. The tortoise walked for 2.56 minutes.

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Ответ:

coralaguilar1702

11.03.2021

Mathematics

405150

Step-by-step explanation:

3 people are to be selected from 75 people. This could be done using the combination function, $\binom{75}{3}$ . But thus function only gives the number of ways of choosing any 3 out of the 75 customers. For any single selection of any 3 customers, there are 3! ways of sharing the three prizes among them. Hence the total number of ways of sharing the prizes is

$\binom{75}{3}\times3! = 405150$

In fact, this is the permutation function given by

${}^{75}P_3 = \dfrac{75!}{(75-3)! = 405150}$

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Atortoise is walking in the desert. it walks for 17.92 meters at a speed of 7 meters per minute. for how many minutes does it walk?

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