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

Which place had the LEAST slaves transported to them during the Slave Trade?

What is the relationship between the difference in the means and the MADs?

On the map above, the number 1 is nearest to which feature?

An electromagnetic radio wave is received by a transmitter before it is converted to a sound wave. The radio wave has a wavelength of 23,076 m and a frequency o

Write -4/5 as a decimal number

During a sale, a clothing store discounts all prices by the same percentage. A pair of jeans is marked down from $45 to $33.75. What is the sale price for a $65

Find all the common factors of 8 and 12. A) 2, 4 B) 1, 2, 4 C) 1, 2, 4, 8

Mrs. Watson has 30 desks in her math class, each shaped like the trapezoid shown below. She plans to cover each one with bulletin board paper for a project. Wha

You have been working through a lot of material that includes sorting grammatically correct and incorrect sentences. Directions: Take a look at the sentences b

-0.5(14a - 22) = ? this for my work, please help me.