Question

x:20=5:x calculate the positive value of x

Answer 1

Answer:

x/20 =5/x

by cross multiplication

x²=100

x=+10 or -10

positive value of x=+10

Answer 2

Answer:

$\frac{x}{20} = \frac{5}{x} \\ {x}^{2} = 100 \\ x = 10$

hope this will help you....