Question

if N varies directly as m, and N=8when M= 20 find M when N=?

Answer 1

Answer:

17 1/2

Step-by-step explanation:

N ∝ M

∴N = kM where k is a constant

N = 8 when M = 20

∴ 8 = k x 20

k=820=25

∴N=25MIfN=7

∴7=25MM=352=17 1/2