There are no solutions to the given system of equations.
Hope this helps.
Answer: The required number of books that Ruben had before purchases is 50.
Step-by-step explanation: Given that Ruben bought 6 new books for his collection that increased his collection by 12%.
We are to find the number of books that Ruben had before purchases.
Let x denotes the number of books that Ruben had before purchases.
Then, according to the given information, we have

Thus, the required number of books that Ruben had before purchases is 50.
Your answer is P= -8. Hope this helps.
Answer:a^2 +b^2 =c^2.
Step-by-step explanation:
square of magnitude of first vector + square of magnitude of second vector + twice the dot product of the two vectors whose sum's magnitude is to be found.
The picture shows the answer I got!
Also! For the future, I use a site called
math way and it is great for problems like these.