Answer:
D
Step-by-step explanation:
Given: Wanda increased her carbohydrate intake from [tex]215[/tex] grams a day to [tex]415[/tex] grams a day.
To find: By what percentage did Wanda increase the amount of carbs she eats daily.
Solution:
Original amount of carbs Wanda takes [tex]=250[/tex] grams.
New amount of carbs Wanda takes [tex]=415[/tex] grams.
Increase in amount of carbs [tex]=415-250=165[/tex] grams.
[tex]\textrm{Percentage increase}=\frac{\textrm{Increase in the amount of carbs taken}}{\textrm{Original amount of carbs taken}}\times 100\%[/tex]
[tex]\textrm{Percentage increase}=\frac{165}{250}\times100\%[/tex]
[tex]\textrm{Percentage increase}=66\%[/tex]
So, Wanda increase [tex]66\%[/tex] of carbs she eats daily.
Hence, option D is correct.
