Let x, y and z be non-zero numbers. If x: y = 3 : 1 and y: z = 4:3, find (x + z) : (x + y). Please help me to solve this question with steps, thanks!orz

 15 : 16

Step-by-step explanation:

x : y              y : z

3 : 1              4 : 3

Find the LCM for both y's.  LCM = 4

     x : y                        y : z

3(4) : 1(4)                      4 : 3

 12 :  4                         4 : 3

-->    x : y : z = 12 : 4 : 3

 (x + z) : (x + y)

12 + 3 : 12 + 4

   15   :     16

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?