a die is rolled. what is the probability of rolling the following a multiple of 2 or a multiple of 5?

Question

anonymous · Answer

a. 1/18
b. 1/12
c. 1/6
d. 2/3

anonymous · Answer

Count the number of rolls that are a multiple of 2.  Add that number to the number of rolls that are a multiple of five.  Call that "x".  Then,

x/(total faces on the die)    is your answer.

anonymous · Answer

im confused

anonymous · Answer

Is 2 a multiple of 2?

anonymous · Answer

In other words, is there some integer that you can multiply by 2 to get 2?

anonymous · Answer

yes?

magbak · Answer

It is only 3 possibilities because only 3 sides on a six sided die are a multiple of 2 or a multiple of 5. The out comes are 1,2,5 because 1 x 2=2, and 1x5=5

anonymous · Answer

To conceptualize this problem correctly, it will help if you list out several multiples of 2.  You can do that by taking the natural numbers (1, 2, 3, ...) and multiply each by 2.  Go ahead and list out about 5 multiples.

magbak · Answer

Ok @tcarroll010 take it over from here :)

anonymous · Answer

@susana123 ?  Are you able to do that?

anonymous · Answer

@Zarkon , I guess sometimes a helper ends up talking to no one but himself!

zarkon · Answer

yep