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
goldfiish [28.3K]
3 years ago
8

Explain how 4/10÷2 and 4/10×1/2 both equal 2/10.

Mathematics
1 answer:
iris [78.8K]3 years ago
5 0

Answer:

Step-by-step explanation:

when you are taking (4/10) and dividing it by 2.  you have a fraction over a fraction.  if you remember what you do to the top part of the equation you do to the bottom.  so we want to get rid of dividing by 2.  (multiple by the reciprocal)  the reciprocal of 2 is 1/2.  that will cancel out the bottom part of the equation but what you do to the bottom you have to do to the top.  so,  (4/10) * 1/2 is the same as (4/10) divided by 2. hope that makes sense.  it's much easier to write out then type math...

You might be interested in
A business executive, transferred from Chicago to Atlanta, needs to sell her house in Chicago quickly. From conversations with h
Oksi-84 [34.3K]

Answer:

The standard deviation of the price she will get is $8,371.58.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The variance of the uniform distribution is given by:

V = \frac{(b-a)^{2}}{12}

The standard deviation is the square root of the variance.

Uniformly distributed between $204,000 and $233,000

This means that a = 204000, b = 233000

So

V = \frac{(b-a)^{2}}{12} = \frac{(233000 - 204000)^{2}}{12} = 70,083,333.33

The standard deviation is the square root of the variance. So

S = \sqrt{70,083,333.33} = 8,371.58

The standard deviation of the price she will get is $8,371.58.

8 0
3 years ago
Determine which method would be more efficient for solving: Rewriting and using the distributive property or dividing. Solve eac
liq [111]

Answer:

A.  x = 3.03

B.  x = 4/3

Step-by-step explanation:

A.  2000 (x-0.03) = 6000 is quickly simplified byu dividing both sides by 2000:

(x - 0.03) = 3.  Removing the parentheses, we get:  x = -0.03 = 3, or x = 3.03.

B.  The distributive property is the faster method here.  We determine that the LCD is 12 and multiply both sides of this equation 1/4 (4+x) = 4/3 by 12:

3(4 + x) = 16

and then carry out the indicated multiplication:  12 + 3x = 16, or

3x = 4, or x = 4/3

7 0
3 years ago
What is the difference of the polynomials [m²n²-7]-(mn+4)
AleksAgata [21]
You can do addition and substraction operations with polynomials similarly as with simple real numbers.


First of all you have to open brackets and then you can add numbers (-7-4=-11). Then the result is following:
(m^2n^2-7)-(mn+4) =m^2n^2-7-mn-4=m^2n^2-mn-11
5 0
3 years ago
Mrs. Carter's famous peanut butter cookies call for 1 cup of peanut butter for every 1 2 of a cup of oil. Today, she wants to ma
Alla [95]

Answer:

2 cups of peanut butter

Step-by-step explanation:

Mrs. Carter's famous peanut butter cookies call for 1 cup of peanut butter for every 1/2 of a cup of oil. Today, she wants to make a huge batch with 1 cup of oil. How much peanut butter should she use?

From the above question:

1/2 cup of oil = 1 cup of peanut butter

1 cup of oil = x

Cross Multiply

1/2x = 1 × 1

x = 1 ÷ 1/2

x = 1 × 2/1

x = 2 cups of peanut butter.

Therefore, for huge batch with 1 cup of oil, she should use 2 cups of peanut butter.

4 0
3 years ago
Which is bigger, a third of 45 or one-sixth c<br> 138?
Ksju [112]

Applying the knowledge of fractions, the bigger one is: one-sixth of 138.

<h3>What are Fractions?</h3>

Fractions can be defined as a part of a digit or number, and are not whole numbers. For example, a third is 1/3, one-sixth is 1/6, which are both fractions.

Therefore, let's evaluate each statement:

1/3 of 45 = 1/3 × 45 = 15

1/6 of 138 = 1/6 × 138 = 23

Therefore, the bigger of the two is: one-sixth of 138.

Learn more about fractions on:

brainly.com/question/17220365

#SPJ1

6 0
2 years ago
Other questions:
  • Place 0.05 , -3 , -22 , 1/2, -1/8 , 0.8 on a Number line
    8·1 answer
  • The probability that an event will occur is fraction 2 over 3 . Which of these best describes the likelihood of the event occurr
    14·1 answer
  • Please help me with this problem.
    10·1 answer
  • Polygons
    11·1 answer
  • Can someone please help me with my homework
    10·1 answer
  • Help?? pleaseeeee cant fudge it out lol
    6·1 answer
  • For the function h(x)= 4x^2-5x, what is the value of h(-3)?
    9·1 answer
  • Find the area of the right triangle with a base of 38cm and the height of 26cm
    8·1 answer
  • Shane walked 3 meters west then turned the corner to walk 4 meters north to get to the library . He is going to walk home on the
    13·1 answer
  • PLS HELP! WILL GIVE 5 STARS, BRAINLIEST, AND THANKS! PLS ANSWER ALL 5!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!