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
Delicious77 [7]
3 years ago
13

You know that multiplication can also be expressed as repeated addition. Why is it more difficult to use repeated addition when

multiplying two mixed numbers than it is to use repeated addition when you are multiplying a mixed number by a whole number?
Mathematics
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:Let's start with the underlying fact. Multiplication simply is not repeated addition, and telling young pupils it is inevitably leads to problems when they subsequently learn that it is not. Multiplication of natural numbers certainly gives the same result as repeated addition, but that does not make it the same.

Step-by-step explanation:

You might be interested in
A pair of shoes usually sell for $63. If the shoes are 40% off, and a sale tax of 7% is allied to discount cost, what is the tot
faust18 [17]

Answer:

$42

Step-by-step explanation:

40% of $63 is $25.2

$63 - $25.2 = $37.8

How much your paying without tax 37.8

7% of $63 is $4.41.

$37.8 + $4.41 = $42.21

Rounded 42.21 = 42

Im not 100% sure about the rounding but I hope this helps!

6 0
3 years ago
What is the range?<br><br> 0, 10, 7, 7, 10 ,3, 5
scoundrel [369]
I think the range is 10 cuz the lowest and highest number subtracted is 10
3 0
3 years ago
Read 2 more answers
Write four related facts. use pictures to show how the number sentences are related 1st grade
Grace [21]
Any answer choices?
5 0
3 years ago
A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the b
Olenka [21]
Probability of anything =

     (number of possible successful outcomes)
divided by
     (total possible number of outcomes) .

There are 36 total marbles in the bag, so there are 36 total
possible outcomes of one draw.

The successful outcomes are all the possible draws that are
not blue.    There are 28 of those.

So the probability of a non-blue selection is 

         28/36  =  7/9  =  77.8%  (rounded)
6 0
4 years ago
Can someone plz help me Thank you in advance:)
yulyashka [42]

Answer : The specific heat of the metal is, 2178.67J/kg^oC

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of metal = ?

c_2 = specific heat of ice = 2000J/kg^oC

m_1 = mass of metal = 1.00 kg

m_2 = mass of ice = 1.00 kg

T_f = final temperature of mixture = -8.88^oC

T_1 = initial temperature of metal = 5.00^oC

T_2 = initial temperature of ice = -24.0^oC

Now put all the given values in the above formula, we get:

(1.00kg)\times c_1\times (-8.88-5.00)^oC=-[(1.00kg)\times 2000J/kg^oC\times (-8.88-(-24.0))^oC]

c_1=2178.67J/kg^oC

Therefore, the specific heat of the metal is, 2178.67J/kg^oC

4 0
4 years ago
Other questions:
  • How many solutions does the system have?
    5·2 answers
  • What are the first 5 multiples of 7
    5·2 answers
  • The pharmacist uses 67mg, 100g and 0.6 kg of drug to compound 3 separate precription. how much total drug did the pharmacist use
    6·1 answer
  • Consider the diagram and angle measurements shown below.
    11·2 answers
  • Use two points to enter an equation for the function. Give your answer in the form a (b^x). In the event
    7·1 answer
  • Jared and Morgan are making two gazebos in the shape of regular polygons, Jared's gazebo is a heptagon
    12·2 answers
  • I can’t solve plz help me ...
    8·1 answer
  • I will be doing EASY questions so you guys can get the points <br> turn 1/2 to a precent
    14·1 answer
  • See image help me as fast as possible, please
    5·1 answer
  • Similarity and altitudes in right triangles
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!