MathYouLike MathYouLike
  • Toggle menubar
  • Toggle fullscreen
  • Toggle Search
  •    Sign up
  • PERCENTAGES
  • Newest
  • Featured
  • Votes
  • Unanswered
  • First «
  • 1
  • 2
  • 3
  • 4
  • 5
  • » Last
  • QUESTIONS
  • TAGS
  • USERS
  • BADGES
  • ASK A QUESTION
  • BLOG

percentages

  • Newest
  • Featured
  • Votes
  • Unanswered

...
Huỳnh Anh Phương
18/06/2018 at 03:30
Answers
2
Follow

Look at the summary, make the problem, then answer the solution. Express your answer by the common percentages.

88 marbles 23 marbles ?%

percentages

  • ...
    Nguyễn Mạnh Hùng 18/06/2018 at 08:00

    Problem: A and B have 88 marbles, B has 23 marbles. How many marbles does A have?

    Solution: A has the number of marbles is: 88 - 23 = 65 ( marbles)

    Answer: 65 marbles 

  • ...
    lê đức anh 10/01/2020 at 13:22

    Vấn đề:Một cái hộp có 88 viên bi,trong đó số viên bi đen là 23.Tính tỉ số phần trăm số bi còn lại so với số bi trong hộp.

    Giải:

      số bi còn lại là

           88-23=65 viên

      tỉ số phần trăm giữa số bi còn lại và số bi trong hộp là

             65:88x100=73,86%

                        đ/s:73,86%


...
Huỳnh Anh Phương
12/06/2018 at 12:31
Answers
2
Follow

Anna has 708 strawberries. She uses 12 strawberries to make cake, 20 strawberries to make juice. What percent Anna have left?

double countingpercentages

  • ...
    Nguyễn Mạnh Hùng 14/06/2018 at 02:10

    After using strawberries to make cake and make juice, Anna's strawberries left is: 

    708-12-20=676(strawberries)

    Anna is only has:

    676:708\(\approx0,95=95\%\)

    Huỳnh Anh Phương selected this answer.
  • ...
    lê đức anh 10/01/2020 at 13:24

    95% nha


...
huynh anh phuong
23/05/2018 at 10:19
Answers
6
Follow

The school has 900 students. 25% of them are weak students. How many students are good students?

percentages

  • ...
    Huy Toàn 8A (TL) 25/05/2018 at 02:05

    C1 : Lê Quốc Trần Anh and Đào Trọng Luân

    C2:

    There are : 100% - 25% = 75% (students) are good students

    There are all good students : 900 . 75% = 675 (students) are good students

  • ...
    Lê Quốc Trần Anh Coordinator 23/05/2018 at 11:06

    There are: \(900.25\%=225\left(students\right)\)are weak students

    So there are: \(900-225=675\left(students\right)\) are good students

  • ...
    lê đức anh 10/01/2020 at 13:24

    675

    hk tốt


...
Nguyễn Phương Linh
23/04/2017 at 15:44
Answers
14
Follow

Class 5A is going to grow 180 trees. Now they have grown 45% number of trees. How many trees are class 5A have to grow more?

percentages

  • ...
    Lê Mạnh Tiến Đạt 23/04/2017 at 21:14

    The number of 5A field was developed are:

           180 : 100 x 45% = 81 ( trees ) 

    Number of 5A plants to be planted is :

            180 - 81 = 99 ( trees )

                          Đ/S: 99 trees 

    Wish you good study ok

  • ...
    congtung123 24/04/2017 at 17:52

    eighty-one trees

  • ...
    Anh Lê Vương Kim 23/04/2017 at 17:21

    eighty-one trees


...
Vũ Hà Vy Anh
11/04/2017 at 18:03
Answers
3
Follow

mix 25 tons of iron ore containing 72% iron with 25 tons of iron containing 60% irons .How many percent of iron ore does that mixture of iron ore contain?

percentages

  • ...
    Phan Thanh Tinh Coordinator 16/04/2017 at 06:03

    First 25 tons of iron ore contain :

    25 : 100 x 72 = 18 (tons of iron)

    Second 25 tons of iron ore contain :

    25 : 100 x 60 = 15 (tons of iron)

    The mixture of iron ore weighs :

    25 + 25 = 50 (tons)

    The mixture of iron ore contains :

    18 + 15 = 33 (tons of iron)

    The percentage of iron to the mixture is :

    33 : 50 = 66 : 100 = 66%

    The percentage of iron ore to the mixture is :

    100% - 66% = 34%

    Vũ Hà Vy Anh selected this answer.
  • ...
    FA KAKALOTS 03/02/2018 at 12:38

    First 25 tons of iron ore contain :

    25 : 100 x 72 = 18 (tons of iron)

    Second 25 tons of iron ore contain :

    25 : 100 x 60 = 15 (tons of iron)

    The mixture of iron ore weighs :

    25 + 25 = 50 (tons)

    The mixture of iron ore contains :

    18 + 15 = 33 (tons of iron)

    The percentage of iron to the mixture is :

    33 : 50 = 66 : 100 = 66%

    The percentage of iron ore to the mixture is :

    100% - 66% = 34%

  • ...
    lê đức anh 10/01/2020 at 13:25

    34%'

    ok 


...
Min Hoang moderators
16/03/2017 at 14:02
Answers
5
Follow

Linda received 100 dollars in cash for mowing lawns. She did the following with the 100 dollars:

 - Put 30% of the $100 into a bank account.

- Spent \(\dfrac{1}{5}\) of the 100 dollars.

- Kept the rest of the 100 dollars in cash.

How much of the 100 dollars did Linda keep as cash?

Fractionpercentages

  • ...
    ¤« 08/04/2018 at 15:10

    Change: 30%=310

    Linda kept: 1−(15+310)=12

     of the 100 dollars as cash.

  • ...
    Nguyên Hạo 16/03/2017 at 14:57

    Change: \(30\%=\dfrac{3}{10}\)

    Linda kept: \(1-\left(\dfrac{1}{5}+\dfrac{3}{10}\right)=\dfrac{1}{2}\) of the 100 dollars as cash.

  • ...
    In the name of love 16/03/2017 at 21:06

    have : 30%=\(\dfrac{3}{10}\)

    Linda kept : 1-(1/5+3/10)=1/2 

    Answer : Linda kept 1/2 of the 100 dollars as cash


4800

questions

Weekly ranking

  • ...

    Nguyen The Thao

    This week's point: . Total: 0
  • ...

    nguyễn ngọc bảo hân

    This week's point: . Total: 0
  • ...

    Chibi

    This week's point: . Total: 7
  • ...

    Grand Master

    This week's point: . Total: 0
  • ...

    Nguyễn Huy Thắng

    This week's point: . Total: 159
  • ...

    Mây Bay Theo Gió

    This week's point: . Total: 0
  • ...

    gggggggg

    This week's point: . Total: 0
  • ...

    Nguyễn Huy Thắng

    This week's point: . Total: 0
  • ...

    James Blizabeth

    This week's point: . Total: 0
  • ...

    Mai Marry

    This week's point: . Total: 0

Tags

games 18  double counting 8  generating functions 2  probabilistic method 1  Polynomial 9  inequality 13  area 17  Equation 9  Primitive Roots Modulo Primes 1  Primitive in Arithmetic Progression 6  Base n Representatioons 4  Pell Equation 1  mixed number 1  Fraction 29  Circle 3  Imaginary numbers 1  Decimal number 2  Volume 2  percentages 6  simple equation 19  absolute value 19  rational numbers 20  Operation of Indices 21  Simulataneous Equation A System of Equations 25  Multiplication of Polynomial 17  divisibility 24  Maximum 5  Minimum 8  Fraction 4  Prime Numbers and Composite Numbers 13  Square Number 26  Even and Odd Numbers 13  GDC and LCM 11  GCD and LCM 12  Permutation and combination 9  combinations 5  interger 7  number 10  Diophantine equations 2  equations 1  Grade 6 19  Power 3  equality 2  maxima-minima 2  square root 1  Polygon 2  IGCSE 1  factorial 1  integers 2 
© 2016 MATHYOULIKE
Crafted with by OLM.VN