Question

Please help asap!!

Answer 1

What i would do is count the number of seats in the fourth row, which has 13 seats. Keep doing this trick/technique until you get to get to the twenty-fourth row

Answer 2

Then do I add all the numbers up?

Answer 3

I'm sure there is a much more elegant way to do this.... buuuuuut.
If the first row starts at 10, and it has 24 rows, then you'll need to add it like this:

10+11+12+13+14+15+16+17 ETC

Essentially increment +1 for every row (24 times) and add all the numbers up

Answer 4

Okay and could you guys explain this...

Answer 5

That one i am confused on, sorry...

Answer 6

It's okay thanks for your help tho

Answer 7

you're welcome. but thank Ultri more, because he a better job of explaining them

Answer 8

Oh... Looking at it a second time it looks like it's every other odd number starting at 7. So it's like the first one but instead you need to increment from 7 by 4 every time and add it all together

Answer 9

(26 times)

Answer 10

So...
7+11+15+19+23+27...
Now I have have no idea what I'm doing

Answer 11

Yea, and just keep incrementing until you have done it 26 times.


Frankly I would write some code like this for it:
```javascript
x = 7;
for (i=0;i<=25;i++) {
x += 4;
}
console.log(x);
```
There is probably a mathematical way to do it though

Answer 12

Oh okay. Thank you I understand!!

Answer 13

Thank you both for the help! @Ultrilliam @MrMudd183
I appreciate it a lot!

Answer 14

No problem! :)

Answer 15

just looking at the coding stuff has me confused Ultri, but i kind of under stand it. and you're welcome Hanna!

Answer 16

understand*

Answer 17

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Ultrilliam
I'm sure there is a much more elegant way to do this.... buuuuuut.
If the first row starts at 10, and it has 24 rows, then you'll need to add it like this:

10+11+12+13+14+15+16+17 ETC

Essentially increment +1 for every row (24 times) and add all the numbers up
\(\color{#0cbb34}{\text{End of Quote}}\)

The simpler way would be to use the following formula:

\(\large\bf{S_{n}=\frac{n}{2}(2a+(n-1)d)}\)

n = total count of terms
a = first term
d = common difference

Answer 18

what blackghost said

Answer 19

and ultri