SOLUTION: A 9-lb puppy is gaining weight at a rate of 3/4 lb per week. When will the puppy's weight exceed 22 1/2 lb?

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Question 471244: A 9-lb puppy is gaining weight at a rate of 3/4 lb per week. When will the puppy's weight exceed 22 1/2 lb?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
9+.75n=22.5
.75n=13.5
n=13.5/.75=18
The puppy's weight will exceed 22 1/2 lbs. after 18 weeks..