The variable z is inversely proportional to x. when x is 5, z has the value 0.8. what is the value of z when x= 12?

Given that, the variable z is inversely proportional to x.

So, we can set up an equation as following:

z * x = k Where k is constant of variation.

Also given that, when x = 5 then z =0.8.

Next step is to plug in these values in the above equation to get the value of k.

So, 0.8 * 5 =k

k = 4

So, the equation become : z* x = 4.

Now we need to find the vaue of z when x=12. Hence,

z * 12 = 4

z = Divided each sides by 12 t isolate z.

z = 0.3 Rounded to tenth.

So, z= 0.3

Hope this helps you !

3.76%

step-by-step explanation:

answer: procent 54 wynosi 33,33%