N-3n=14-4n
N-3n+4n=14
2n=14
N=14÷2
N = 7 To check substitute 7-3(7)=14-4(7)
7-21=14-28
-14=-14
Answer:
x+x-63=637 solve for x
2x=700 divide each side by 2
x=350
so 350 adult and 350-63=287 student
your answe is
287
W = kL where W = weight supported, L = length of the beam and k is constant of variation.
Substituting the given values:-
310 = 2k
k = 155
so equation of variation is W = 155L
For length 10 m the weight it can support is
W = 155*10 = 1550 kg answer
Answer:
-30 ?
Not really sure what you mean by that but, -19-11= -30 is all I know.
