8.5 is the answer to your question
Answer:
Step-by-step explanation:
Given the following expresion provided in the exercise:
You can follow these steps in order to evaluate it when and :
1. You need to substitute and into the given expression:
2. Now you can solve the mutiplication:
3. Since , you get:
4. You must solve the division. Divide the numerator 16 by the denominator 4. Then:
5. And finally, you must solve the addition. So, you get this result:
Answer:
x = 12
Step-by-step explanation:
Proportional relationship means that = k(a constant)
Here, k = 12/8 = 3/2
So, the equation is = 3/2.
Plug in y = 18, and we get 18/x = 3/2.
18 = 3/2x
x = 12