Question

read the problem.
mr. erwin has 70 books in his classroom library, and 35 of them are non - fiction. what percent of mr. erwins books are non - fiction?
pick the model that represents the problem.
(there are two bar models shown, the first with 5 blue segments, marked 0, 35, 70 on the bottom and 0%,?, 100% on the top; the second with 2 green segments, marked 0, 35, 70 on the bottom and 0%,?, 100% on the top)
what percent of mr. erwins books are non - fiction?
%

Explanation:

Step1: Calculate the ratio

$\frac{35}{70} = 0.5$

Step2: Convert to percentage

$0.5 \times 100\% = 50\%$

Step3: Identify correct model

The second bar model splits 0-70 into two equal parts (0-35 and 35-70), which matches the 50% ratio.

Answer:

Correct model: The bottom bar model (split into two equal sections, with 35 at the midpoint)
Percent of non-fiction books: $50\%$