Voted Questions
Uchiha Sasuke
16/01/2018 at 19:41
Đỗ Duy Mạnh
11/04/2017 at 11:15-
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Đỗ Duy Mạnh 11/04/2017 at 20:08
\(That\) \(number\) \(is\) \(322\)
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Vũ Hà Vy Anh 11/04/2017 at 17:49i think is 322
Kaya Renger Coodinator
15/08/2017 at 22:45-
AL 16/08/2017 at 15:58Use AM-GM's ineq:
\(\dfrac{b+c}{\sqrt{a}}+\dfrac{c+a}{\sqrt{b}}+\dfrac{a+b}{\sqrt{c}}\ge\dfrac{2\sqrt{bc}}{\sqrt{a}}+\dfrac{2\sqrt{ca}}{\sqrt{b}}+\dfrac{2\sqrt{ab}}{\sqrt{c}}\)
\(=\left(\sqrt{\dfrac{bc}{a}}+\sqrt{\dfrac{ca}{b}}\right)+\left(\sqrt{\dfrac{ca}{b}}+\sqrt{\dfrac{ab}{c}}\right)+\left(\sqrt{\dfrac{ab}{c}}+\sqrt{\dfrac{bc}{a}}\right)\)
\(\ge\sqrt{a}+\sqrt{b}+\sqrt{c}+\sqrt{a}+\sqrt{b}+\sqrt{c}\)
\(\ge\sqrt{a}+\sqrt{b}+\sqrt{c}+3\sqrt[3]{abc}\)\(=\sqrt{a}+\sqrt{b}+\sqrt{c}+3\)
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Uchiha Sasuke
26/01/2018 at 07:48
Lucy Cinder
13/03/2017 at 21:28-
Nguyễn Trần Thành Đạt 13/03/2017 at 23:03
The total number of candy John and Tom ia:15+31=46( candies)
Tom need to give to John so that each boy will have the same number of candies is:
31-46:2=8(candies)
Answer: 8 candies.
Selected by MathYouLike -
MSN 15/03/2017 at 18:49The total number of candy John and Tom ia:
15+31=46( candies)
Tom need to give to John so that each boy will have the same number of candies is:
31-46:2=8(candies)
Answer: 8 candies -
Nguyễn Phương Linh 24/03/2017 at 21:58The total candies of John and Tom is:
15 + 31 = 46 (candies)
The number of candies that Tom needs to give John so that each boy will have the same number of candies is:
31 - (46 : 2) = 8 (candies)
Answer: 8 candies.
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Help you solve math 28/08/2017 at 15:061st way :10 + 20 + 60 + 40 + 80 + 90
=(1 + 2 + 6 + 4 + 8 + 9) x 10
=30 x 10
=300
2nd way :10 + 20 + 60 + 40 + 80 + 90
=(10 + 90) + (20 + 80) + (60 + 40)
=100 + 100 + 100
=100 x 3
=300
longia selected this answer. -
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longia 28/08/2017 at 15:08thank you
I don't know this question:There are 5 salmons,2 sharks,2 dolphins and 67 mackerels.How many fish are there?
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triệu lệ dĩnh 19/07/2017 at 10:15the number of wheels is :
4 x 2 + 2 x 3 + 1 x 4 = 18 ( wheels)
answer: 18...
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→இے๖ۣۜBoy™†hïếuGîa 23/03/2017 at 14:34Nick will need : 134134 + 334334 = 112112 = 5,5
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Nguyên Hạo 16/03/2017 at 12:07Nick will need: \(1\dfrac{3}{4}+3\dfrac{3}{4}=\dfrac{11}{2}=5.5\) (cups of flour)
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Trần Đức Huy 15/05/2018 at 07:55Nick will need : 134134 + 334334 = 112112 = 5,5
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FA KAKALOTS 28/01/2018 at 22:17After Sunday night, fraction of book left is:
1−34=14
(book)
So fraction of book she read on Monday afternoon is:
14−15=120
(book)
On Monday afternoon, she read:
120−(120.14)=380
(book)
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Nguyên Hạo 16/03/2017 at 12:05
After Sunday night, fraction of book left is:
\(1-\dfrac{3}{4}=\dfrac{1}{4}\) (book)
So fraction of book she read on Monday afternoon is:
\(\dfrac{1}{4}-\dfrac{1}{5}=\dfrac{1}{20}\) (book)
On Monday afternoon, she read:
\(\dfrac{1}{20}-\left(\dfrac{1}{20}.\dfrac{1}{4}\right)=\dfrac{3}{80}\) (book)
