3+1 + - + ... ?

What is the sum of the first 7 terms of this geometric series: 3+1 + 3

Question

Mathematics

Jeremiah Wood

29 January, 11:33

3+1 + - + ... ?

What is the sum of the first 7 terms of this geometric series: 3+1 + 3

+1

Answers (1)

Know the Answer?

Toby Newton · Answer 1

15

Step-by-step explanation:

3+1+3+1+3+1+3 = 15 this is what it would look like if you write it out. To save time do 3 times 4 to get 12 and then just add three ones to 12 to get 15.

3+1 + - + ... ?What is the sum of the first 7 terms of this geometric series: 3+1 + 3

3+1 + - + ... ?

What is the sum of the first 7 terms of this geometric series: 3+1 + 3