Respuesta :

mhanifa

Answer:

  • See below

Step-by-step explanation:

Inverse relationship equation:

  • y = k / x, where k is the coefficient

1)

  • This question is lacking details, can't answer

2)

Required equation:

  • a = k/b, where k is the coefficient

Use the initial values to find the value of k:

  • 6 = k/2 ⇒ k = 6*2 = 12

Find a when b = 4:

  • a = 12/4 = 3

Option C

3)

Required equation:

  • y = k/x, similar to question 2.

Find k:

  • 6 = k / 10 ⇒ k = 6*10 = 60

Find x when y = 3:

  • 3 = 60/x ⇒ x = 60/3 = 20

Option D

4)

Required equation:

  • a = k/b

Find k:

  • 12 = k/5 ⇒ k = 12*5 = 60

Find a when b = - 15:

  • a = 60/(-15) = - 4

Option C

5)

Required equation:

  • t = k/N

Find k:

  • 20 = k/6 ⇒ k = 20*6 = 120

Find t when N = 16:

  • t = 120/16 = 7.5 hours

Option B

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