1. ## Arithmetic Sequence

In a given arithmetic sequence t1 is 5x+2y and t3 is 11x-y. What is the value of t2 in this sequence.

Please explain this to me and if possible show the steps, i am so confused

2. Originally Posted by nuckers
In a given arithmetic sequence t1 is 5x+2y and t3 is 11x-y. What is the value of t2 in this sequence.

Please explain this to me and if possible show the steps, i am so confused
The sequence is arithmetic so add them together and divide by 2.

3. thats what i did and i got 8x+.5y and apparently i was told that it was wrong, so i'm really confused over it

4. I also get that

$\frac{(5x+2y)+( 11x-y)}{2} = \frac{ 16x+y}{2} = 8x+\frac{y}{2}
$

You are correct unless you have not understood and copied the question correctly