Question

if y=5x-20 and mean of x is 30 ana find mean of y

Answer 1

Answer:

y=130

Step-by-step explanation:

y=5x-20

y=5(30)-20

y=150-20

y=130

hope it is useful

Answer 2

Given:

Mean of x = 30

y = 5x - 20

To Find:

The mean of y.

Solution:

It is given that y = 5x - 20

From the above equation, it is clear that y is expressed in terms of x.

Thus, the mean value of y can be found by substituting the mean value of x in the given equation for y.

y = (5×30) - 20

y = 150 - 20

y = 130

The mean value of y is 130.