K Kendra New Member Mar 30, 2017 #1 The age of the older of the two boys is twice that of the younger. 5 years ago it was three times that of the younger. Find the age of each
The age of the older of the two boys is twice that of the younger. 5 years ago it was three times that of the younger. Find the age of each
math_celebrity Administrator Staff member Mar 31, 2017 #2 Age of the older boy is o, younger boy is y. We have the following equations: o = 2y o - 5 = 3(y - 5) Plug (1) into (2) (2y) - 5 = 3y - 15 Plug this into our equation solver, we get: y = 10 Plug that into (1), we get: o = 2(10), o = 20
Age of the older boy is o, younger boy is y. We have the following equations: o = 2y o - 5 = 3(y - 5) Plug (1) into (2) (2y) - 5 = 3y - 15 Plug this into our equation solver, we get: y = 10 Plug that into (1), we get: o = 2(10), o = 20