Answer:

Step-by-step explanation:
Given
Direct variation implies that:

Where k is the constant of variation.

Required
Find y when 

Make k the subject

For: 

For: 
becomes

Substitute 

Make y the subject




Dont fall for it she’s lying she will take your ip it happened to me
They all have the same numbers but are placed differently
Answer:
Step-by-step explanation:
Given that:
x + 4y = 30
x - 2y = 0
Subtracting both equations:
6y = 30
y = 30/6
y = 5
Putting in above equation
x + 4(5) = 30
x + 20 = 30
x = 10
i hope it will help you