
Mark W. answered 11/19/14
Tutor
4
(1)
Former Air Force Officer / Certified (SC, TX) HS Math Teacher
Tony? Abu? I am guessing Tony is Abu? :D
I hate these. :)
I hate these. :)
30 + 14 = 44, so there will be 44 total pens.
Dan will have three times as many as Tony. Let n be how many Tony has, and then 3n will be how many Dan has:
3n + n = 44 (because the total number of pens has not changed)
4n = 44
n = 11
Dan will have three times as many as Tony. Let n be how many Tony has, and then 3n will be how many Dan has:
3n + n = 44 (because the total number of pens has not changed)
4n = 44
n = 11
So, Tony will have 11. Tony has 14. 14 - 11 is the number Tony gives Dan, and that is 3. When Tony gives Dan 3 pens, Dan will have three times as many as Tony has.