Question 1121672
If a computer can do a calculation in 0.000004 second, how long, in seconds, would it take the computer to do 6 billion (6 comma 000 comma 000 comma 000​) ​calculations? Write your answer in scientific notation.
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You obviously have a comma key.  Why write "comma?"
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t = 4e-6*6e9 seconds
t = 24e3 seconds
t = 2.4e4 seconds, or
2.4*10*4 seconds