Question

Find the value of y for a given value of x, if y varies directly with x.

If y = 2.52 when x = 8.4, what is y when x = 2.7?

Answer 1

(2.52/8.4)*2.7=0.81

Answer 2

Direct variation:
\(k = \frac{Y}{X}\)
If y varies directly with x:
\(y=kx\)
\(2.52 = k(8.4) ;0.3 = k\)
\(y = 0.3 * 2.7 = 0.81\)

Answer 3

One of the users ask this !
Go there and get answer !:)
http://openstudy.com/users/e.ali#/updates/52369c48e4b0af32a07997ba
I think :)

Answer 4

Any problem ?:)