jasminedawe jasminedawe

13-08-2018
Mathematics

contestada

Mrs Nicholas is buying Christmas presents for her five children to give to one another. If each child gives a present to each of the others, how many presents must she buy?

Respuesta :

Аноним Аноним

13-08-2018

This is given by number of permutations of 2 from 5

= 5! / (5 - 2)! = 120 / 6 = 20 Answer

Answer Link

Otras preguntas

How can I find the prime factorization of a number with an easy explanation?

Another question how fast is Andrew traveling?

Complete the sentence with the correct response. The central core of an operating system is called the .

Is 5 times 5/6 greater than 5

2p – 194.99 = 284.97

The part of speech helps determine ~how to use a word ~the job of the word in a sentence ~what the author meant ~the purpose of the writing Please help

A triangle has sides with lengths of 16 centimeters, 23 centimeters, and 24 centimeters. Is it a right triangle?

Another question how fast is Andrew traveling?

At 4.5 miles per hour, how long will it take him to walk 18 miles?

What is the area of the circle. Explain your work.