you have 3 unowns i think it is imposible to solve or you forget smth
Thank you Melody !
I alredy cheked it and it is complete answer :P
72
yes i understood everything thanks Melody ! :)
let s wrote simpler:
\(\frac{\left(3\cdot 1200\right)}{100}=\frac{N}{1}\)
yes you can cross multiply this but you didn t need to
0.25=25/100=1/4
2/9, 3/9, 1/4
(2x4)/(9x4), (3x4)/(9x4), (1x9)/(4x9)
8/36, 12/36, 9/36
8/36____9/36_______________12/36
1/36 3/36
10+10+9/9=21
10+10+10/10=21
Here is the graph that (-3,0) can be:
https://www.desmos.com/calculator/rxe34pziyx
Sn=n((a1+an)/2
4999*(1+4999)/2 = 12,497,500
excuse me my mistake
