Question

A is a positive number and if a is 27 by 64 is equals to 3 by 4 is to a then the value of a is

Answer 1

Answer:

Step-by-step explanation:

a:27/4 = 3/4 : a

For ratios the rule is product of extremes = product of means

So,

a*a = 27/4 * 3/4

⇒ a²= 81/4

⇒a = √(81/4)

⇒a=9/2 ~ 4.5