I don't get these questions. please help me with them, thanks :)

first question

second question:

Guest Mar 22, 2019

edited by
Guest
Mar 22, 2019

#1**0 **

1150 + 150n n from 1 to 12

n = 12 an = 1150+1800=2950

s= n (a1+ an)/2

12(1150+2950)/2=24600

Guest Mar 22, 2019

#2**-4 **

Well the resturant makes 2950 in 12 months here is the math\

Well the resturant starts with $1,300

so each month it earns $150

so

150*11=1650

Then

1,650 = 2,950 a year I should say that is how much it makes in 12 months

1,300 =

Hope This helps (;

Nickolas Mar 22, 2019

#3**0 **

**Sum =N/2[2*F + (N - 1)*D, where N=12, F=1,300, D=150 Sum =12/2[2*1,300 + (12 - 1)*150 Sum =6[2,600 + (11*150)] Sum =6[2,600 + 1,650] Sum =6*[4,250] Sum=$25,500 - Restaurant's profit in 12-month period.**

Guest Mar 22, 2019

#6**0 **

Because they get a 150 profit every year you took it as if th profit started in febuary..

HiylinLink
Mar 22, 2019

#10**-1 **

Well two people agreed on mine it is not right to say mine is wrong without prof 2 people said mine was right 2

Nickolas
Mar 23, 2019

#11**-1 **

Well I have no Idea which guest is talking but it was both guest users the equation Idea I though was an excellent way to put it but unfortuanatly 6th graders aren't familar with full algrbra concepts yet...

HiylinLink
Mar 23, 2019

#12**0 **

I'm the one who posted the question that you are all replying to :) So I'm the one asking HiyinLink what the correct answer is.

Guest Mar 23, 2019

edited by
Guest
Mar 23, 2019

#13**-1 **

Cool well good XD yup I liked the equation it was an excellent Idea we can just simplify it for him if he's not familiar...

HiylinLink
Mar 23, 2019

#14**0 **

The subject this question is from is arithmetic series & applications, and i'm in algebra 2.

Guest Mar 23, 2019

edited by
Guest
Mar 23, 2019

#21**-1 **

I might be able to help you tommorrow I GTG though if not someone else that may get to it before me...

HiylinLink Mar 23, 2019

#22**-1 **

But trick fo the final 1 thre is an increase of three evry row so going down sven you can do it like this you just addd the new values everytime you go down..

HiylinLink Mar 23, 2019