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Mathematics 16 Online
OpenStudy (♥ashley♥):

Use the conditional statement to answer the question. If a whole number is even, then the number is divisible by 4. Are the statement and its converse true? A. Both the statement and its converse are false. B. The statement is true, but the converse is false. C. The statement is false, but the converse is true. D. Both the statement and its converse are true. I think its B.

OpenStudy (sooobored):

lets test your answer, lets choose a random even whole number "2" is it divisible by 4?

OpenStudy (♥ashley♥):

no

OpenStudy (sooobored):

so we know that the statement is false

OpenStudy (sooobored):

lets look at the converse statement, "if a number is divisible by 4, then the whole number is even" random divisible by 4 number, "44" is this statement true?

OpenStudy (♥ashley♥):

I think so

OpenStudy (sooobored):

crud, bad example

OpenStudy (seratul):

Lol.

OpenStudy (sooobored):

lets go with 48 instead, 48 divided by 4 is 12 12 is even, hence the statement is true

OpenStudy (♥ashley♥):

So its C

OpenStudy (sooobored):

but now we have to ask, are there any possible numbers divisible by 4, that wont result in a even number?

OpenStudy (sooobored):

hence we look at 44 44 divided by 4 is equal to 11 is 11 even?

OpenStudy (♥ashley♥):

no

OpenStudy (♥ashley♥):

if I divide 6 by 4 it gives me 1.5

OpenStudy (♥ashley♥):

So it isnt always true

OpenStudy (sooobored):

well, 1.5 is not a whole number either so the statement is false

OpenStudy (sooobored):

which means your final answer is?

OpenStudy (♥ashley♥):

A.

OpenStudy (seratul):

I'm going to have to disagree.

OpenStudy (sooobored):

did i make a mistake somewhere?

OpenStudy (seratul):

I agree that the original statement is wrong. But the converse is correct. If the number is divisible by 4, then it is even. This is true.

OpenStudy (sooobored):

oh crap, you're right my bad

OpenStudy (seratul):

It's alright. I got confused at first but I had to say in my head multiple times. So it should be C.

OpenStudy (♥ashley♥):

ok, thanks

OpenStudy (sooobored):

on a more general note, if a statement appears to be true, see if there is any way possible way to make it false

OpenStudy (seratul):

Agreed.

OpenStudy (♥ashley♥):

The answer was correct. Thanks

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