Ask your own question, for FREE!
Mathematics 10 Online
OpenStudy (anonymous):

How many even 3-digit positive integers can be written using the digits 1, 2, 4, 7 & 8? How exactly do I set this up? Like is it a permutation or combination?

OpenStudy (anonymous):

the answer is 75, but I'm not sure how to get it.

OpenStudy (anonymous):

please help!(:

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!