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A blue whale gains 2.3 tons a month for the first year of life. If a blue whale weighed 15 tons at birth, how much will it weigh on its first birthday?
 Aug 9, 2013
 #1
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The initial weight is 15 tons
on the first birthday 12 month will pass
as given on each of the first 12 months the whale will gain 2.3 tons
means the whole weight gained = 12 x 2.3 = 27.6 tons
the final weight = 15 +27.6 = 42.6 tons
i hope that helped !
 Aug 15, 2013
 #2
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