Final answer:
To determine the ratio of miniature marshmallows to scoops of hot cocoa mix, compare the quantities used in the recipe, resulting in a ratio of 10:3.
Step-by-step explanation:
The question asks us to find the ratio of miniature marshmallows to scoops of hot cocoa mix. To find this ratio, we simply compare the number of miniature marshmallows to the number of scoops of hot cocoa mix that Eva uses for her perfect cup of hot cocoa.
Eva uses 10 miniature marshmallows and 3 scoops of hot cocoa mix. Thus, the ratio of miniature marshmallows to scoops of hot cocoa mix can be written as 10:3.