The top shelf has 14 books.
Step-by-step explanation:
Given,
Books on bottom shelf = y = 12
Let,
Number of books on top shelf = x
Books on top shelf = 10 more than 1/3 on bottom shelf.
According to given statement;
[tex]x=\frac{1}{3}y+10[/tex]
[tex]x=\frac{1}{3}*12+10\\\\x=\frac{12}{3}+10\\\\x=4+10\\\\x=14[/tex]
Therefore,
The top shelf has 14 books.
Keywords: fractions, addition
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