Which of the following is the explicit formula for the sequence below 3,11,19,27
1 answer:
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So, using our given information, we have a line of the equation 
, or 
. Plugging in our value 9 for 
, we get 
.
j=3
j=3
Answer: Annette will take 6 hours to do the entire job alone.
Step-by-step explanation:
Given: Time taken by Kelly to do of job = 2 hours
i.e. Time for complete job done alone by Kelly =
Rest of work = of the job
of the complete job done by both Kelly and Annette in 3 hours
Time would be taken by then to do entire job together =
Let t be the time taken by Annette to do job alone.
Then, as per situation
hence, Annette will take 6 hours to do the entire job alone.