Question

Find the value of x and y so that both proportions will be correct: x/y = 3/8 and y/25 = 6.4/5

Answer 1

x = 12 and y = 32

Explanation:

`(y)/(25)=(6.4)/(5)\\\\\y=(6.4)/(5)*25\\\\y=6.4*5\\\\y=32`

`(x)/(y)=(3)/(8)`

Plug in the value of y

`(x)/(32)=(3)/(8)\\\\x*8=3*32\\x=(3*32)/(8)\\\\x=3*4\\\\x=12\\`