meggiova6aud meggiova6aud 07-01-2017 Mathematics contestada Steven is three times as old as Jenny. The sum of their ages is 63. Let S be Steven’s age and J be Jenny’s age. Select the system of equations that represent the problem? ( A) S=3J S+J=63 (B) S=J+3 S+J=63 (C) S=3J SJ=63