. if 3, 2, y, 10 are in proportion, find the value of y​

y = 15

Step-by-step explanation:

Given :

3, 2, y, 10

If the numbers are in proportion :

We can thus say :

3/2 = y/10

Cross multiply

3 * 10 = 2 * y

30 = 2y

Divide both sides by 2

30 / 2 = 2y / 2

15 = y

A. write an equation to represent this direct variation. make sure to define your variables.  we define the variables:   p = perimeter  l = sides of the square  the equation that represents this proportional variation is:   p = 4l  b. in complete sentences, use a specific example to justify your equation from part a. include a drawing in your answer.  example: consider a square of sides 4 units. find the perimeter.the perimeter of the square can be found in two ways:   way 1:   p = 4 + 4 + 4 + 4 = 16  way 2:     using equation of part a:   p = 4l  p = 4 * (4)  p = 16  note: see attached image.