Set up the proportion with the numbers on top equalling the cars and the numbers on the bottom representing the trucks.

c equals the number of unknown cars.
To solve the proportion, cross multiply (multiply 8 by 9 and 36 by c) and solve for c.
72 = 36c
Divide 36 from both sides to get the answer.
c = 2
If there are 9 trucks, there are 2 cars.
You can check this by dividing 2 by 9, and dividing 8 by 36. Since they both equal the same number, this answer is correct.
Hope this helps =)
Answer:
Step-by-step explanation:
let f(x)=y

Answer:
The x in this question is 151 degrees
Answer:
Check step-by-step explanation
Step-by-step explanation:
A =

to solve for
:
= 
to solve for
:
= 
17) 146 min.
18) 5 hrs and 31 min
19) -1/6