Answer:
Ellie can make 10 smoothies with the yogurt
Step-by-step explanation:
let x be the number of smoothies to find:
1 smoothie uses = 1/2 i.e. 0.5 cup of yogurt
x smoothies will use = 5 cups of yogurt
x = 5/.5 = 10
thus,
Ellie can make 10 smoothies with the yogurt