Phillip received 75 points on a project for school. He can make changes and receive two-tenths of the missing points back. He can make corrections as many times as he wants. Create the formula for the sum of this geometric series and explain your steps in solving for the maximum grade Phillip can receive. Identify this as converging or diverging.
@Mathbreaker

Question

Phillip received 75 points on a project for school. He can make changes and receive two-tenths of the missing points back. He can make corrections as many times as he wants. Create the formula for the sum of this geometric series and explain your steps in solving for the maximum grade Phillip can receive. Identify this as converging or diverging.
@Mathbreaker

anonymous · Answer

it goes like 5, 1, 1/5, 1/25 and so on
Then use this formula a(1-r^n)/(1-r) for the sum. 
But yo uwill need an n, for you to find the grade, but as the graph would go up towards y axis, we can assume that it'd be somewhere around 81, which is an A by my grading system :P
Try to do the math here :D

anonymous · Answer

@mohammad.arqum