1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sdas [7]
3 years ago
9

What is two thirds of four fifths?

Mathematics
2 answers:
BabaBlast [244]3 years ago
8 0

Answer:

The word "of" in the question means multiply, so you need to multiple these two fractions.

2/3 x 4/5 = 8/15

Thepotemich [5.8K]3 years ago
3 0

Answer:

10/12

Step-by-step explanation:

To multiply fraction, you have to flip the 4/5 to 5/4, then multiply with 2/3

You might be interested in
What is 5.151515 to 2 decimal places​
Citrus2011 [14]

Answer:

5.15

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which of the expressions are equivalent to the one below? Check all that
VikaD [51]

Answer:

none of them match

Step-by-step explanation:

maybe something is typed wrong. the answer I got for the equation was 108 and none of them match

8 0
2 years ago
Please help with this! I will mark you as brainliest!
Svetllana [295]

Answer:

an = 5 + (n-1)7

= 5+7n-7

= 7n-2

3 0
3 years ago
Read 2 more answers
???????????????????????????
Alina [70]

Answer:

Mean=13.22

Median=13.05

Standar deviation=3.51

  • The mean is  a measure of central tendency in a probabilistic sense. Matematically speaking,  it can be calculated as the average of the elements that conform a set of numbers. It is important because it provides you with information about a dataset without having to know every value of your data. As an example, if you have a sample of the age of school teachers, the mean age of teachers will tell you what is the average age among all the teachers in the sample.It can be calculated like this:  \frac{1}{n} \times \sum x = \frac{1}{n} \times (12+12.5+18.2+13.6+15.3+7.7) = 13.22
  • The median value results from ordering the dataset in an ascending way, from the smallest to  the greatest, and then determining which value divides the sample ordered in this way, in half.  It is an other measure of central tendency and it helps you to know about the balance of your data. In the example provided before, if the median age of teachers is 45,  you know that half of teachers are older than 45, and the other half is younger. When dealing with a finite set of numbers, the median’s value will depend on the characteristic of the sample. If there is an odd number of observations, the median value will be the middle value. On the other hand, if there is an even number of observations, the median will be the average between the two middle values. In the exercise, this value is calculated as the average between 12.5 and 13.6, which results in 13.05.
  • Standar deviation is a measure of dispersion around the mean value. Its value is an indicator of how near are the observations in the sample, from the mean.  A low standard deviation imply that the observations in your dataset are closed to the mean value. In terms of the teachers’ example, if the mean is 50 and the standard deviation is 2, many of the teachers in your datasets are between 48-52 years old. Following this example, if the standard deviation was 10 and the mean 50, most of the teachers would be between 40 and 60 years old (mean plus and less 10 years). The lowest the standard deviation, the more informative the mean: when the standard deviation is small, the values of the sample are closer to the mean. To obtain the standar deviation value one should use the following equation: s=\sqrt{\frac{1}{n-1} \times \sum{ (x_{i} - \bar{x})^{2} } \\, where \bar{x} is the mean value that you calculated before, and "n" is the number of observations in the sample.

3 0
3 years ago
7 and 1/4 divided by 5/6 as a fraction or mixed number in simplest form
Alchen [17]
First off, turn 7 1/4 into a mixed number, 29/4. change 29/4  /  5/6   into a multiplication question by flipping 5/6 into 6/5 (AKA multiplying by the reciprocal) so you get 29/4  X  6/5. then multiply so you get 174/20. Next, simplify into a mixed number by seeing how many times 20 goes into 174, and then putting the leftovers into a fraction, so you get 8 14/20, then simplify even further so you get 8 7/10. 
3 0
3 years ago
Other questions:
  • to make mortar you mix 1 shovel of cement with 5 shovels of sand. how much sand do you need to make 30 shovels of mortar
    7·1 answer
  • H(n) = -n^2+4+n<br> g(n) = n-1<br><br> Find g(h(n))
    5·1 answer
  • WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS CORRECTLY!!!!!! PLEASE HELP ASAP!!!!!
    13·1 answer
  • How are Hakeem and savon alike in the book blood is thicker
    12·1 answer
  • CAN ANYONE HELP ME THAT IS GOOD IN MATH
    12·1 answer
  • Frank is going to throw a ball from the top floor of his middle school. The function
    7·1 answer
  • Find the equation of a line passing through the point(-3,0) and (2,-3)​
    15·2 answers
  • IDK- PLS HELP ME plss
    14·1 answer
  • Find 39.5% of 373. Round to the nearest hundredth
    14·1 answer
  • A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed on yellow side up 28 times.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!