Answer:
g = 9
Step-by-step explanation:
F varies directly as g and inversely as h
[tex]f = \frac{kg}{h} \\ 6 = \frac{ - 18k}{ - 5} \\ - 30 = - 18k \\ k = \frac{ - 30}{ - 18} \\ k = \frac{5}{3} [/tex]
[tex]f = \frac{ \frac{5}{3} g}{h} [/tex]
[tex]5 = \frac{ \frac{5}{3}g }{ - 3} \\ - 15 = \frac{5}{3} g \\ - 45 = 5g \\ g = 9[/tex]