Question

Find ‘a’ and ‘b’ if x and y vary directly
x 7 9 13 b
y 21 a 39 63​

Answer 1

Answer:

Value of a in the following question is 27.

Value of b in the following question is 21

Step-by-step explanation:

✌hope it's helpful

Answer 2

Step-by-step explanation:

a. value is 27

b. value is 21

I hope this answer is correct ,