Question

Y is directly proportional to x write a formula in terms of x find the value of y when x is 0.6 find the value of x when y is 38.5

Answer 1

a)
`x=(y)/(k)`

b)
`y=0.6k`

c)
`x=(38.5)/(k)`

Explanation:

From the question we are told that:

`y=38.5`

`x=0.6`

Generally the equation for the directly proportional variable is mathematically given by

`y \alpha x`

`y=kx`

Where

`K=proportionality\ constant`

a)

The Formula in terms of x

`x=(y)/(k)`

b)

`y=k(0.6)`

`y=0.6k`

c)

`38.5=kx`

`x=(38.5)/(k)`