
Andrew M. answered 09/27/15
Tutor
New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors
Let N = # video games Nick has
Let B = # video games Brian has
N + B = 55
Since Nick has 20% more video games than Brian then
N = (120/100)B = 1.2B
Substitute 1.2B in place of N in eqn N+B=55
1.2B + B = 55
2.2B = 55
B = 55/2.2 = 25
Brian has 25 video games
Nick has 1.2(25) = 30 video games