if 125% of n equals 600, then n = 600/1.25= 480.
4/9 = 20/n 4n = 9(20) 4n = 180 n = 45
20 = 5 + n/3 15 = n/3 n = 45
n x 125/100 = 600 n = 600 x 100/125 = 480
200
1*20 = 20 Thus n = 20
n = 20
N equals 20. You would take 5 and multiply it by 16, and then you get 80. Take 80 and then divide by 4, and then you get 20. Here is what the equation would look like. 5x(16)=4n 80= 4n Then divide each side by a four. N=20. There you go.
N=20
(N/8)=(12/16) N= (12*8/16) N=6
25
Ok this equation is 20 = 0.004 x N, yes? Rearrange for the variable 'N' to get 20/0.004 = N, N = 5000. Not hard.