math
posted by john on .
1. If 2x/5y=6,what is the value of y, in terms of x ?
2. 11/4a=3 , What is the value of a in the equation ?

1. What you probably meant was
2x/(5y) = 6
then 2x = 30y
y = 2x/30 = x/15
2. Again, without brackets, we could assume you meant
11/(4a) = 3
but I will take you at face value and do it according to the order of operation.
11/4  a = 3
11/4  3 = a
a = 11/4  12/4
a = 1/4
using 11/(4a) = 3
11 = 12  3a
3a = 1
a = 1/3
Can you see how critical brackets are when typing on here? 
thank you