Question

read the story.
mitchell reads only mysteries and sports books. last year, he read 5 mysteries for every 2 sports books.
pick the diagram that models the ratio in the story.
(diagrams: first diagram has 5 blue rectangles for mysteries and 2 yellow rectangles for sports; second diagram has 5 blue rectangles for mysteries and 3 yellow rectangles for sports)
if mitchell read 12 more mysteries than sports books, how many mysteries did he read?
mysteries

Explanation:

Step1: Define variables for the ratio

Let the number of mysteries be $5x$ and sports books be $2x$ (since ratio is 5:2).

Step2: Set up equation for the difference

Mysteries - Sports = 12: $5x - 2x = 12$

Step3: Solve for x

$3x = 12$ → $x = 4$

Step4: Calculate number of mysteries

$5x = 5×4 = 20$

Answer:

20