Problema Solution
If a baby weighed 3.7 kilograms at birth. The baby now weighs 6.65 kilograms. How many kilograms did the baby gain?
Answer provided by our tutors
Subtract the birth weight (mass) from the current weight (mass) to find the change (w) in weight (mass):
NOTE the units used are not weight units, they are mass units
W = Wo - Wf
Where
Wo = 3.7kg
Wf = 6.65kg
W = 6.65kg - 3.7kg
W = 2.95kg