Question

The scale factor is 3:1 what would y and x be ? Having a hard time trying to figure this out

Answer 1

$\dfrac{3}{1} = \dfrac{30}{y}$

Cross multiply:
$3y = 30$

Divide by 3:
$y = 10$

Answer:  y = 10


$\dfrac{3}{1} = \dfrac{x}{8}$

Cross multiply:$x = 24$

Answer: x = 24