SOLUTION: A baby weighed 3.2 kg at birth. She gained o.17 kg per week. How old was she when she weighed 5.75 kg?

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Question 670751: A baby weighed 3.2 kg at birth. She gained o.17 kg per week. How old was she when she weighed 5.75 kg?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
3.2+.17X=5.75
.17X=5.75-3.2
.17X=2.55
X=2.55/.17
X=15 WEEKS ANS.