The ratio represented by first table is 3:5
The number that completes the table of equivalent ratio is 64
Given :
Table of values x and y
From the first table , lets pick x and y and find out common ratio
x:y
18:30
Simplify the ratio, divide both sides by 6
[tex]3:5[/tex]
Lets pick one more point and check the ratio
42: 70
divide both sides by 14
ratio is 3:5
The ratio represented by first table is 3:5
Now we find out the ratio for the second table
18:24
divide both sides by 6
3:4
So the ratio for the second table is 3:4
Let x be the unknown
48:x
Now we make a proportion to solve for x
[tex]3:4= 48:x\\\frac{3}{4} =\frac{48}{x} \\3x=4 \cdot 48\\divide \; by \; 3\\x=64[/tex]
The number that completes the table of equivalent ratio is 64
Learn more : brainly.com/question/2293921