Respuesta :
she had 5 cookies left.
2/3 of 60 is 40 that she sold leaving 20, she then gave away 3/4 of them
3/4 of 20 is 15, that she gave away so she has 5 left
2/3 of 60 is 40 that she sold leaving 20, she then gave away 3/4 of them
3/4 of 20 is 15, that she gave away so she has 5 left
There are 5 cookies left.
Further Explanation
Given:
- Mrs. Onusko made 60 cookies
- She sold [tex]\frac{2}{3}[/tex] of the cookies
- She gave [tex]\frac{3}{4}[/tex] of the remaining to the students
Question:
How many cookies did she have left?
Based on the information above, first we are going to calculate the number of cookies that were sold:
[tex]\boxed {\frac{2}{3} \times60 = \frac{120}{30} = 40 cookies}[/tex]
so the remaining cookies would be:
= total cookies made - total cookies sold = 60-40 = 20 cookies
Mrs. Onusko gave [tex]\frac{3}{4}[/tex] of the remaining cookies to the students:
[tex]\boxed {\frac{3}{4} \times20 = 15 cookies }[/tex]
so, now the number of cookies left:
[tex]\boxed {20-15 = 5 cookies }[/tex]
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Keywords: fraction, subtraction, part to whole relationship, additional fraction