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

Sputnik was the world’s first ____________. a. jetliner c. space shuttle b. submarine d. satellite User: The international space station is named Alpha.

f(x)= x2+2/10 What is the answer I'm so bad at math

subduction zones are found under which kind of plate?

in a given hybridization between two flowers, red "R" is dominant, and white "r" is recessive. In a cross between two white-flowered plants, all of the offsprin

what might a superstitious character do

HELP PLEASE !!!!!!!! If the function f(n) models the amount of man-hours it takes to construct (n) televisions that are ready to ship from a electronic manufac

Karleigh walks 5/8 mile to school every day. How far does she walk to school in 5 days?

what is a sentence using cytokinesis

3.why does energy as heat move away from the tropics and toward the pole in the global weather system? 5. A student is reading about predicted upcoming El Niño

At a class pizza party, each pizza ordered had 2/8 of the pizza left over after the party. In all, 1 1/2 pizzas were left over. How many pizzas were ordered?