Question

if x varies directly as 3y and x = 8 when y = 3, find x when y = 27

Answer 1

Answer:

80

Step-by-step explanation:

x=3y+c

x=8 when y=3 => 8=9+c => c=8-9=-1

x=3y-1

when y=27 => x=3×27-1=81-1=80