Question

to win the annual read - a - thon at his school, toby has to read more books than any of his classmates over winter break. he starts by reading a lot of sports books. then, he reads 10 mystery books. in all, toby reads 23 books for the read - a - thon. which equation can you use to find the number of sports books n toby reads? n - 10 = 23, $\frac{n}{10}=23$, 10n = 23, n + 10 = 23 solve this equation for n to find the number of sports books toby reads. sports books

Explanation:

Step1: Identify the relationship

The total number of books is the sum of sports - books and mystery - books. Let the number of sports books be $n$ and the number of mystery books is 10, and the total number of books is 23. So the equation is $n + 10=23$.

Step2: Solve the equation for $n$

Subtract 10 from both sides of the equation $n + 10=23$. We get $n+10 - 10=23 - 10$, which simplifies to $n = 13$.

Answer:

The equation is $n + 10 = 23$ and the number of sports books is 13.