SOLUTION: Karabo is training by running fo the comrades marathon, he starts his training by running 40km per week. Each week he increases the distance covered by running10km. 1.Write down

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Question 862772: Karabo is training by running fo the comrades marathon, he starts his training by running 40km per week. Each week he increases the distance covered by running10km.
1.Write down the formula to calculate the distance he runs in the week.
2.Use the formula to calculate the distance he runs in the Use12th week of training

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
starts with 40km per week and increases that 10km each week after
D(n) = 10(n-1) + 40 |where n represents the week of training
d(12) = 10*11 + 40 = 150km