Answer:
b
Step-by-step explanation:
Answer:
24/49
Step-by-step explanation:
Let's add the terms and see if there's a pattern

Suppose we say the sum of n terms is (n/(2n+1)), the next term in the series will be 1/((2n+1)(2n+3)) and adding that to the presumed sum gives ...

Then it appears the sum of n terms is (n/(2n+1)). So, the sum of 24 terms is ...

Answer:
2/3
Step-by-step explanation:
5 black
3 green (not black)
3 blue (not black)
4 yellow (not black)
there are 5 black and 10 not black out of a total of 15 marbles.
there are 10/15 that are not black. Reduced 2/3.
you clicked the right one
Answer:
The answer is the second option
Step-by-step explanation: