Respuesta :
Answer:
3
Step-by-step explanation:
First, multiply the bread cost 2.70 by 2, getting you 5.40.
Next, add 11 for the cost of the caketo 5.40 getting you 16.40
Subtract 16.40 from 20 to get how much money you get for the cookies, getting you 3.60
Divide 3.60 by 3 to find how much money each boy gets, getting you 1.20
Divide 1.20 by .40 to get the number of cookies each boy gets, getting you 3
To solve the problem, we will first calculate the total amount spent by Grandma, then we will calculate the change that will be left, and will calculate the cookies each one of them will get.
Each person will get 3 mini chip cookies.
Given to us
- Frank, Joe, and Carl went with their Grandma to the bakery.
- she said that they could use the change she got back to buy mini-chip cookies to share equally
- she bought a cake for $11 and 2 loaves of bread for $2.70 each she paid with a $20 bill
- the mini chip cookies cost 40¢
Solution
Total Grandma spent
- Grandma bought a cake for $11
- Grandma bought 2 loaves of bread for $2.70, [tex]2 \times \$2.70 = \$5.40[/tex]
Total Grandma spent = Cost of a cake + cost of 2 loaves of bread
= $11 + $5.40
= $16.40
Change left
Change that will be left = Grandma paid - Grandma spent
= $20 - $16.40
= $3.6
Therefore, the change left with them is $3.6.
Number of mini chip cookies
Number of mini chip cookies they can buy,
[tex]=\rm \dfrac{Change\ left}{Cost\ of\ mini\ chip\ cookies}[/tex]
[tex]=\dfrac{\$3.6}{\$0.40}\\\\ = 9[/tex]
Thus a total of 9 mini chip cookies can be bought.
Number of cookies each one will get
Dividing the total number of cookies between the three people,
Number of cookies each one will get
[tex]=\rm {\dfrac{Total\ number\ of\ cookies\ that\ can\ be\ bought }{Number\ of\ person}[/tex]
[tex]=\dfrac{9}{3} =3[/tex]
Hence, each person will get 3 mini chip cookies.
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