immanueljobent30 immanueljobent30

10-01-2020
Mathematics

contestada

If a varies directly as b and a=3 when b=12, what is the value of a when b=18?

Respuesta :

josshyaby josshyaby

11-01-2020

Answer:

Step-by-step explanation:

a & b

a = kb

a = 3 and b = 12

k = a/b

k = 3/12

k = 1/4

a = b/4

Finding a when b = 18

a = 18/4

a = 9/2

a = 4 1/2

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