Question

Solve the following given

Answer 1

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