S/A= 4.5, D/A=4.5,N/E=.80, A= D+E. SOLVE FOR N/S

To solve for N/S, we need to manipulate the given information and equations to isolate N/S as the unknown variable.

Given:
S/A = 4.5
D/A = 4.5
N/E = 0.80
A = D + E

First, we'll rearrange the equation A = D + E to solve for D:
D = A - E

Since we don't have a direct equation that includes N/S, we need to express N/S in terms of the given variables. To do this, we'll combine the two given equations involving N/E and D/A:

N/E = 0.80 ...(1)
D/A = 4.5 ...(2)

We'll multiply equation (1) by E and equation (2) by D to eliminate the denominators:

N = 0.80E ...(3)
D = 4.5A ...(4)

Next, substitute the value of D from equation (4) into equation (3):

N = 0.80E ...(3)
D = 4.5A ...(4)

N = 0.80E
D = 4.5A

N = 0.80E = 0.80(4.5A) [Substitute D = 4.5A into equation (3)]
N = 3.6A

Lastly, divide both sides of the equation by A to solve for N/S:

N/S = (3.6A) / (A)
N/S = 3.6

Therefore, N/S = 3.6.