Sunday
April 19, 2015

Homework Help: Easy Math

Posted by Gina on Saturday, October 7, 2006 at 1:08pm.

The number of positive integers that are less than 500 and that are not divisable by 2 or 3 is?


There are 250 divisible by 2, 166 divisible by 3 and 83 divisible by both. So 250 + 166 - 83 = the numbers divisible by 2 or 3, without double counting. Subtract that number from 500.


How did you get 83?


That's the number of positive integers less than 500 divisible by 2 and 3. If you don't subtract that number out, then you'll double count them since they are already included in the counts of both multiples of 2 and 3.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - The question is this: You know that a number is divisible by 6 if it is ...
Math PLEASE HELP!!! - Which of the following is false? a. A number that is ...
Math - Divisibility and Factors - If c and d are integers, d is divisible by 30...
Math - Which of the following is false? a. A number that is divisible by 3 and ...
Math - If c and d are integers, d is divisible by 30, and cd is divisible by 20...
teaching math - Indicate whether the deductive reasoning used is an example of ...
teaching math - Indicate whether the deductive reasoning used is an example of ...
math - Indicate whether the deductive reasoning used is an example of affirming ...
math - is 504 divisible by 2,4,6,8 is 111 divisible by 3,9 is 3,217 divisible by...
Math - True or fals: a number is divisible by 8 if it is divisble by 4 and ...

Members