Question

The variable x varies directly as y and x = 80 when y is 160 .What is y when x is 64 ? *

Answer 1

Answer:

128

Step-by-step explanation:

ratio =

=x/y

= 80/160

= 1/2

so,

1/2 = x/y

1/2= 64/y

y = 64×2

y = 128