Answer: A ratio is one thing or value compared with or related to another thing or value; it is just a statement or an expression, and can only perhaps be simplified or reduced. On the other hand, a proportion is two ratios which have been set equal to each other; a proportion is an equation that can be solved.
Step-by-step explanation: looked it upp
Personally, I never bothered learning the formula.
When I run into a problem like this, I look at it this way:
(I learned this method from my high school math teacher,
Mr. H. Carlisle Taylor, in 1956. It not only works, but I can
even understand it !)
The first object can be any one of the 8 . For each of those ...
The 2nd object can be any one of the other 7. For each of those ...
The 3rd object can be any one of the other 6 . For each of those ...
The 4th object can be any one of the other 5 . For each of those ...
The 5th object can be any one of the other 4 . For each of those ...
The 6th object can be any one of the other 3 . For each of those ...
The 7th object can be any one of the other 2 . For each of those ...
The 8th object has to be the 1 that's left.
Total number of possible ways to line them up is
(8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) = 40,320 ways .
Combine q terms
-30 = 12q - 10
Add 10 to both sides
-20 = 12q
Simplify
Q = -5/3
Answer:
Step-by-step explanation:
the given expression is equivalent to (-9/4) / [-2/3] = (-9/4)*(3/2) = 27/8
