16. If y = +3 and y + x = 9, what is the value of x in the solution to this system?

The simplified system is the arbitrary solution of the original system of equations.

y  =  3

x  =  6

Step-by-step explanation:

Hope this helps! Have a nice day!

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6