She received 
which can be simplified to 
Find the distance between J and K.
1 answer:
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Answer: Required expression is given by
Step-by-step explanation:
Since we have given that
Number of miles per week Elia is training for her first marathon = 10 miles
According to question, we have given that she wants to increase her mileage by 2 miles every week.
so, Equation becomes
10,12,14,16..........
Let the number of weeks be x
Since it forms an Arithmetic sequence,
As we know the formula for nth term :
So, our required expression will be