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Margie volunteered to supply heart-shaped sugar cookies for her third-grade class' Valentine's Day party. Her mom will use premade cookie dough in a tub and buy pink frosting and sprinkles, too. Margie would like to give one cookie to each of her 26 classmates. One tub of cookie dough makes 20 cookies and costs $9.95. The frosting will cover 30 cookies and costs $4.59. The package of sprinkles covers up to cookies 60 and costs $2.29. When Margie's sister, Nicole, hears about the cookies, she asks her mom if they can bake one cookie for each of the students in her class, too. Nicole is in fifth grade and she has 31 students in her class. How much will the ingredients cost for both of the classes?

Respuesta :

florence1312

Answer: $41.32

Step-by-step explanation:

1. Figure out how many students need cookies.

26 + 31 = 57, 57 students need cookies, thus they need to make at least 57 cookies.

2. Figure out which ingredients are still needed.

One tub of cookie dough makes 20 cookies, so to make 57 cookies, they will need at least three tubs. One frosting tin covers 30 cookies, so to cover 57 cookies, they will need at least two tins. One bag of sprinkles covers 60 cookies, so they will only need one bag, as 60 > 57.

3. Tally up the prices of each ingredient

Price of cookie dough = 9.95, amount of cookie dough needed = 3

9.95 * 3 = 29.85

Price of frosting = $4.59, amount of frosting needed = 2

4.59 * 2 = 9.18

Price of sprinkles = 2.29, amount of sprinkles needed = 1

2.29 * 1 = 2.29

4. Find the sum.

29.85 + 9.18 + 2.29 = 41.32

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