Answer:
Explanation:
for direct proportion:
y = kv
y = kw
for inverse proportion:
y = k/z
where, k is the constant of proportionality
1:
equation: y = kv
5 = k * 12
k = 5/12
k = .42
2:
equation: y = kw
18 = 10 * w
w = 18/10 = 1.8
3:
y = 3vw / 2z
= 3 * 16 * 24 / 2 * 6
y = 96
y = kw
96 = k * 24
k = 96/24 = 4
4:
y = 8vw / z
20 = 8 * v * 6 / 2
20 = 24 * v
v = 20/24 = .83
y = kv
20 = k * .83
k = 20/.83 = 24.09
5:
equation: y = kv
= 6 * 12
y = 72