Kara is 4 more than twice as old as Julia. The sum of their ages is 13. How old is Julia?

Question

compassionate · Answer

Hi, 

k = 4 + 2j 
k + j = 13 

So we know how old Kara is, so just plug in k (from the first equation), into k in the second equation, and solve for j.

anonymous · Answer

julia is 3

anonymous · Answer

kara is 10 julia is 3

compassionate · Answer

Hi, 

PigPresident, here at OpenStudy we guide the user to the answer. We have a "No Cheating," policy that we follow. It's better to engage with the guest to make sure they have a learning experience.

anonymous · Answer

ik sorry

compassionate · Answer

It's okay -- just don't continue to break the policy, as it may result in suspension.

anonymous · Answer

sorry today is m first day i joined about an hour ago

compassionate · Answer

That's perfectly done, President! Thank you for joining OpenStudy :) I know you're new, so that's why nothing is going to happen. :)

anonymous · Answer

:D thx