(C)
the equation for inverse variation is
w = [tex]\frac{k}{l}[/tex] ← k is the constant of variation
using the value of k = 164 from part (b), then
w = [tex]\frac{164}{l}[/tex]
(D)
for l = 3 then
w = [tex]\frac{164}{3}[/tex] = 54 [tex]\frac{2}{3}[/tex]
for l = 5 then
w = [tex]\frac{164}{5}[/tex] = 32 [tex]\frac{4}{5}[/tex] = 32.8
for l = 7 then
w = [tex]\frac{164}{7}[/tex] = 23 [tex]\frac{3}{7}[/tex]
for l = 11 then
w = [tex]\frac{164}{11}[/tex] = 14 [tex]\frac{10}{11}[/tex]
