Suppose y varies directly with x, and y=25 when x=-140. What is the value of y when x=36
A)140
B)165
C)201.6*****
D)176
If there's no answer then wtf am i supposed to do....i cant just not select anything
ok so, damon isnt that far off hes actually more correct than wrong.
you start with the function form of a direct variation. y=kx
you substitute y with 25 and x with 140. 25=k(140)
then you divide each side by 140 to sold for k. 25/140=0.17
so the new equation is 0.17=k u then substitute 0.17 for k in y=kx
so now, y=0.17 then u have to the value of x when y = 36 so u make that an equation. y=0.17x(36)=6.17
in conclusion, there is no answer bc the question doesn't have the correct answer as an option. Plz tell me if I'm wrong. Thank you :)
The answer is 201.6
These are the answers!
I got 100% with these answers.
1. 21
2. 201.6
3. 3/4
4. 1/4
5. 200
Thank me later
Thanks
The Mr. Worldwide himself is correct. the answer is 201.6.
AAAAAAYYYYOOOOOO i don't see the answer in my question fam, *smacks lips* man whats wrong ith you man
y = k x
25 = k (-140)
k = -5/28
y = k (36) = -(5/28)(36)
= - 5*9/7
= -6.43