Substitute every option by 16: A 45 B. 32 C 30 D 48
Apparently ACD are all multiples of 3, so they all apply
Using a system of equations, it is found that <u>since the solution of the system does not involve decimal numbers</u>, it is possible to arrange the books in this way.
For the system, we consider that:
- x is the number of books on the first shelf.
- y is the number of books on the second shelf.
- z is the number of books on the third shelf.
In total, there are 152 books, hence:

The first shelf has 7 fewer books than the second shelf, hence:

Also, it has 11 more books than the third shelf, hence:

Then:


Then, replacing in the first equation:





The number of books in each shelf has to be countable, that is, cannot be decimal.
- Then, <u>since the solution of the system does not involve decimal numbers</u>, it is possible to arrange the books in this way.
To learn more about system of equations, you can take a look at brainly.com/question/14183076
Answer:
if your simplifying it is 3x^2 + 9x
Step-by-step explanation:
-$1240/4 months= -$310/month
Answer:
Un helado
Step-by-step explanation: