Series & Sequences questions

[formal gyro]

First one is fine, I am just confused on how to properly find an universal equation for this.

[real carbon]

Ok so do you understand what the question is asking???

[real carbon]

Oh you’ve said the first one is fine, so I’m assuming you’ve done part A?

Part B is similar to part one’s equation

So can u explain how u proved the part A equation?

@formal gyro

[formal gyro]

basically just got the term equation for A1 then * 0.9 + 60 for A2

algebra from there brings you to that

sorry for the very late reply my sleep deprivation is getting to me

[real carbon]

Do u know why they multiply 60 by 1.9?

Sry for my late reply I was in school 😅

[formal gyro]

One of my smarter friends made the unviersal equation and got the answer but never did really understand it

I never*

[real carbon]

Hmmm by “universal equation” do u mean a general equation that works for all values?

[formal gyro]

yeah

sorry if ti sounds superficial but just didnt wanna type that much

xd

[real carbon]

So basically this is similar to a compound interest question

[real carbon]

Np

[formal gyro]

sorry im in tutoring rn so wont be able to reply for a while

after you have been helping me sm I am sorry to flake

but i gtg sorry again

[real carbon]

Do u want the answer first and then want me to explain it or do u just want me to help u get the answer?

[real carbon]

Kk np

Np**

[real carbon]

Np