Question

Answer this correctly, please? Thank you.

Will highly appreciated if you'll explain your answers. ​

Answer 1

• See below

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