3 years ago

The value of w varies directly with z. If z = 4, then w = 12. What is the value

Mathematics

1 answer:

IrinaVladis [17]3 years ago

7 0

Answer:

Step-by-step explanation:

w varies directly with z, let k be the constant of proportionality, hence this can be represented by the equation:

w = kz

When z = 4, w = 12, hence we need to find the value of the constant of proportionality, substituting:

12 = 4k

Dividing both sides by 4:

12/4 = 4k/4

k = 3

Therefore the equation becomes:

w = 3z

The value of w when z = 6 is given as:

w = 3(6)

w = 18

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