Minnie has 4 different stamps. She needs 3 to mail a large letter. How many ways can she pick the 3 that will be used?

Question

19-07-2016
Mathematics

contestada

Minnie has 4 different stamps. She needs 3 to mail a large letter. How many ways can she pick the 3 that will be used?

Respuesta :

Otras preguntas

If Skyler uses 60 liters in each of the 4 weeks next month, will she use more or less than she uses this month? Show your work.

If you write a sentence with an unclear antecedent, it means you used A. an object pronoun instead of a possessive pronoun. B. a plural pronoun when a sing

An angle measuring 75° turns through a circle. Write the fraction for how much of the circle the angle turns through.

Cards are selected one at a time without replacement from a well-shuffled deck of 52 cards? until an ace is drawn. Let X denote the random variable that gives t

which of the following would you want to do when developing a market marketing position A. position yourself in an untapped customer Market B. Market yourse

What does Ephesians 5:19 say

A 1350 kg car travels at 12 m/s. What is it's kinetic energy

solve the unknown variable: 5k/16 +2k/12 = (-25+k)/24

a thermos is how many liters

nobillionaireNobley nobillionaireNobley · Answer 1 · 2016-07-21T18:27:02+02:00

nobillionaireNobley nobillionaireNobley

21-07-2016

Number of ways of picking a smaller number out of a bigger number is called combination.
Number of way of picking 3 stamps out of 4 is 4C3 (4 combination 3) = 4! / (3! x (4 - 3)!) = 4! / (3! x 1!) = (4 x 3 x 2 x 1) / (3 x 2 x 1 x 1) = 24 / 6 = 4 ways.

Answer Link