Question

Z is directly proportional to the sum of x and y. If x=6 and y=5, then z=22. Find the constant of proportionality?

Answer 1

`2:1`

Explanation:

So you need to find the fraction. First, find the sum.
`x+y=6+5=11`
Since `z=22`, you set `11` and `22` as a fraction.
`22/11 . 11/11=2/1`
So the proportion is `2:1`