There are 14 books on a shelf. .5 of them are new. The rest of them are used. What is the ratio of all books on the shelf to use
1 answer:
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Answer:
Step-by-step explanation:
=
We need a common denominator before we can add.
+
means the same thing as
-
=
Answer:
A. 5
Step-by-step explanation:
The marginal benefit of an article, is calculated as:
Where is the change in the total benefit of the article, and
is the change in the units of the article.
If we want to know the marginal benefit of watching the 3rd game, we need to use the information of total benefit of watching 2 games and 3 games.
In this case, the total benefit of watching 2 games is 120 and the total benefit of watching 3 games is 125, so and
are equal to:
Then, the marginal benefit of watching the third game is: