Question

The variables y and x have a proportional relationship, and y = 9 when x = 2.

Answer 1

Answer: $y=13.5$

Step-by-step explanation:

1. By definition, if $y=9$ when $x=2$, then:

$\frac{y}{x}=\frac{9}{2}$

2. Keeping this on mind, to find the value of $y$ when $x=3$, you must apply the following proccedure:

$\frac{y}{3}=\frac{9}{2}$

3. Now, you must solve for $y$, as following:

$y=3(\frac{9}{2})\\y=\frac{27}{2}\\y=13.5$

4. Then, the result is:

$y=13.5$