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

An indicator does which one of the following in the presence of acids and bases? A. Conducts electricity B. Combusts C. Corrodes D. Changes color SUBMIT

Using the digits 0 to 9 at most one time each, fill in the boxes to generate equivalent numerical expression.

Wht is the mass number of 19k/39

b. Three angles are labeled below with arcs. The smallest angle is - as large as the 160 angle. Find the value of angle a. 160° che spent SAS how much money did

The base of a right triangle is 13 less than 2 times the height. The area of the triangle is 12 square cm. What is the height of the triangle in cm? *

John can clean pools at a constant rate of 3/5 pools/hours. How many pools can John clean in 10 hours?

What does the Inspector mean when he says "public men, Mr Birling, have responsibilities as well as privileges"

List 5 Civil Rights events that you remember from A Mighty Long Way.

Where was the last Olympic games played at in the United States?

What do all percussion instruments have in common? Make a very easy explanation!