SOLUTION: Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.       Log On


   

Question 1103049: Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.
Answer by dongen(1) About Me  (Show Source):
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Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.