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.

Question

joannablackwelder · Answer

The formula for the sum of a geometric series is |dw:1406138063774:dw|

joannablackwelder · Answer

Where a is the first term and r is the common ratio

joannablackwelder · Answer

I should have said the formula for the sum of an infinite geometric series...

joannablackwelder · Answer

Can you tell me what a and r are?

anonymous · Answer

the common ratio should be two tenths

anonymous · Answer

i think the first term is 75

joannablackwelder · Answer

Sweet! :)

joannablackwelder · Answer

Can you tell me if it converges or diverges?

anonymous · Answer

i think the series diverges

anonymous · Answer

because the common ratio is over 1

joannablackwelder · Answer

What did you say the common ratio is?

anonymous · Answer

two tenths

anonymous · Answer

oh ok it diverges

joannablackwelder · Answer

How is that over 1?