Evaluate the variable expression x + y + z for x = –17.17, y = 34, and z = –3.9264.
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Let number of books by astrid's = x
Out of x , 84% are fiction.
So, Number of non fictional books = x -
=
→Ratio of number of books to fictional books
⇒[Dividing numerator and denominator by 4.]
→Out of 25 books by astrid 21 are fictional.
→ Number of fictional books by astrid =
5.
First plug the value of x into the equation
then solve for y
6. Do the same steps
First plug the value of x into the equation
then solve for y
6. Do the same steps