Question

Evelyn is using her grandmother's pancake recipe, but she wants to make 40% more pancakes than the recipe usually prepares. If her grandmother's recipe calls for 1/2 cup of flour, how much flour will Evelyn need to use? Show Work!
(A) 3/10 cup
(B) 1/2 cup
(C) 7/10 cup
(D) 1 3/10 cup

Answer 1

(C) 7/10 cup is the correct answer

Step-by-step explanation:

First of all we will calculate the 40% of grandmother's recipe then add it to the given flour in grandma's recipe

So,

The amount of flour in grandma's recipe = F_g = 1/2 cups

Calculating percentage

$=40\%\ of\ \frac{1}{2}\\=\frac{40}{100}*\frac{1}{2}\\=\frac{2}{10}$

So Evelyn needs to add 2/10 cups more to the original quantity.

So,

Flour used by Evelyn:

$=\frac{1}{2}+\frac{2}{10}\\\\=\frac{5+2}{10}\\\\=\frac{7}{10}\ cups$

Hence,

(C) 7/10 cup is the correct answer

Keywords: Percentage, Quantity

Learn more about percentage at:

• brainly.com/question/11286417
• brainly.com/question/11566221

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