The variables y and x have a proportional relationship, and y = 15 when x = 3. what is the value of x when y = 4?

Step-by-step explanation:

We have been given that the variables y and x have a proportional relationship, therefore, we can represent the relationship between x and y as: , where k is proportionality constant.

Let us substitute x=3 and y=15 in above equation to find the value of k.

Now let us substitute k=5 and y=4 in our proportionality equation to find the corresponding value of x.

Therefore, the value of x will be 0.8, when y equals to 4.

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.