ledroses5256 ledroses5256

03-09-2017
Mathematics

contestada

How many 3 digit positive integers are odd and do not contain the digit 5?

Respuesta :

03-09-2017

Hello,
Assume n=a*100+b*10+c un integer positive odd with no 5.

a∈{1,2,3,4,6,7,8,9} ,#8
b∈{0,1,2,3,4,6,7,8,9},#9
c∈{1,3,7,9},#4
Number of integers searched: 8*9*4=288

Answer Link

Otras preguntas

The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twenty-second B. Twenty-first C. Twentieth D. Nineteenth

which numbers are from least to greatest?

Which words in the sentence form the participial phrase? Young children participating in sports develop strong social skills. A. develop strong B. participating

what force keeps an object moving in a circle

if 5y = 1 over 25, what is y?

What fraction that is less than 1/6

What are causes of neurosis?

In 1952 over 4,000 people died due to a 5-day temperature plunge which trapped acid aerosols in the atmosphere in what major European city

List of weapons used by JTF2?

Which strategy is the best way to improve clarity in a wordy sentence? A)Use fewer powerful words. B)Avoid using adverbs. C)Eliminate redundancies. D)Use more m