Posted by **Anonymous** on Monday, May 10, 2010 at 7:35pm.

a newborn infant usually tripples its birthday weight by its first birthday. baby carter weighed 28 pounds on his first birthday. if this were tripple his birth weight (b), which equation below could be used to determine his birth weight?

1)b/3=28

2)b-3=28

3)3b=28

4)b +3=28

5)3(b+3)=28

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