Change in value= new price-original price
Change in value=850-10000
Change in value= -9150
%decreased=change in value/original price x 100
%decreased= 9150/10000x100
The answer is 91.5%
Or mine means that itself and 1 can only go into it. Conposit means that multiple numbers can go into it like 24. 12,6,8,2 can all go into it
|4x-9|=5x
subtract 4 to both sides
and that will give you
|-9|=x then the 9 turns positive because of the brackets
9=X
She already has 463 that's a set amount she started at an her start amount won't change an she's wanting 718 an she is savin 85 a week so every week she gets more money so that number changes so ur equation is 85W+463=718 then u do a two step equation