Mathematics Middle School

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?

Answers

Answer 1

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:

Related Questions

ah im stuck on this lol pls help

Answers

Answer:

y = 0,4x -1 or y = 2/5 x -1

Step-by-step explanation:

you can use the slope formula

m = y2-y1 / x2-x1

m = -1 - (-3) / 0 - (-5) = 2/5

Answer:

y = 2/5x - 1

Step-by-step explanation:

Points on the graph: ( -5, -3) and (0, -1)

Slope:

m=(y2-y1)/(x2-x1)

m=(-1+3)/(0+5)

m = 2/5

Slope-intercept:

y - y1 = m(x - x1)

y + 3 = 2/5(x + 5)

y + 3 = 2/5x + 2

y = 2/5x - 1

20 points
Use either the commutative property or combine like terms to create an equivalent expression to from the equation 9 x j(2 + 5).

Answers

The answer should be “93j”
90j ? Sorry if I’m wrong!

a spinner is split into three equal sections numbered one through three. what is the probability of spinning two threes in a row
A. 1/6
B. 1/12
C. 1/9

Answers

C. 1/9 is the probability

Translate quadrilateral ABCD 3 units to the right and 4 units down. What are the coordinates of the vertices of the image?

Answers

Answer:

there is no image, if you link an image i will edit my answer.

Step-by-step explanation:

Answer:

(3,4) hope i helped you 3 right 4 down

Four triangles are shown. Based on these triangles, which statement is true?

Answers

Answer:

First one

Step-by-step explanation:

100+30=130 That is the rule for finding w

And z=50

Answer: the first one

Step-by-step explanation:

1. Evaluate the expression (6 + 4) x 3 − 4 ÷ 2 using PEMDAS.

16
28
31
37

2.Select the statement that describes the expression one half x (12 ÷ 3) + 8.

one half the quotient of 12 and 3, then subtract 8
one half the quotient of 12 and 3, then add 8
one half the product of 12 and 3, then add 8
one half the difference of 12 and 3, then subtract 8

3. Solve the expression 9 + (20 x one fourth) − 6 ÷ 2 using PEMDAS.

8
11
13
16

Answers

Answer:

1) B, 28

2) A

3) B, 11

Step-by-step explanation:

PEMDAS, and simple math.

What is the name of your profile pic character?

Answer:

1. 28

2. One half of the quotient of 12 3, then add 8

3. 8

plz help me with this!

Answers

Answer: $30.50

Step-by-step explanation:

Let's take our given

One child

Two adults assuming that the aunt and uncle are above 18 years of age

Let's add 5.50+12.50+12.50

$30.50

30.50 is your answer because you adding 5.50 to 12.50 times 2

could some one help a mha fan out pls. Bein a villen is pretty hard ya know lol

Answers

the answers are
14. G
15. 180
16.G

Answer:

the answer for 14 is  G

the answer for 15 is 180

the answer for 16 is G

Step-by-step explanation:

Pls. Help 10 points help me pls anyone?

Answers

Answer:

your answer is correct and you got terrible data

Step-by-step explanation:

Answer:

its 5

Step-by-step explanation:

help please, will mark brainliest to whoever answers right

Answers

Answer:

15

Step-by-step explanation:

When would you estimate the length of an object
not a multi answer

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when it’s necessary. .
When planning stuff out in a blue book like building something or making clothes

please help me, thank you

Answers

Answer:

-19.59

Step-by-step explanation:

can I please have brainliest? :)

Answer:

-19.59

Step-by-step explanation:

Something I use when I need help on math is Desmos (Just type in Desmos in the search bar)

Help with homework pls

Answers

it would be an open circle with an arrow going to the right

Answer:

An arrow extending to the right without the circle filled in.

Step-by-step explanation:

The variable a is greater than three.

I really need help quick!!:) please!! I will give brainliest to first right answer!!!

Answers

Answer:

SA = 41.

Step-by-step explanation:

Add up everything and you get 41 as the SA.

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Answer: y=100/500x

I didn't write the y-intercept on form because y-intercept is 0.

I hope you have a nice day

The guy above me is right

For the situation, write and solve an equation. Then, explain what your solution means. If you get stuck, try drawing a diagram on your paper.



A food pantry is making packages. Each package weighs 64 pounds. Each package contains 4 boxes. Each box contains a 7-pound bag of beans and a bag of rice. The bags of rice are all identical.

Answers

Answer:

64 = 4x + 7        

Ivanna made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was $21.20. If the beads cost a total of $11.60, how much did each pendant cost?

Answers

Each pendent cost $2.40

Ravi has bought 18 pounds of dog food. He feeds his dog 2/3 pounds for each meal. For how many meals will the food last?

Write you anwer in the simplest form.

Answers

The answer will be 27 meals because if one meal costs only 2/3 pound and he already has 18 it will fit 27 meals. I found the answer by diving 18 by 2/3

Answer:

I believe it's 6

Step-by-step explanation:

so so so soooooo sorry if it's wrong good luck! tho AGAIN sorry

PLZ I NEED HELP, will give BRAINS

Answers

Answer:

0% of 36: 0

100% of 36: 36

25% of 36: 9

75% of 36: 27

Step-by-step explanation:

0% of any number is 0.

100% is the same number.

To find 25% you can divide by 4.

To find 75% you can divide by 4 and multiple by 3.

25% = 1/4

75% = 3/4

I hope this is helpful :)

PLZ HELP ME PLZ PLZ ..................

Answers

The answer is 2.5

I saw this question though, that's weird lol

I would assume 2.5 by division. You multiply 3 by 2.5 to get a result of 7.5. You can find this out by dividing 7.5 by 3.
Answer- 2.5

plz help due today...................

Answers

Answer:

No it won’t be easy to find because burying the treasure 30 ft away is really far so he wouldnt remember exactly where it is. I think if he made a “x” over the spot then it would be easier

Plz give brainliest if this helped :D

Step-by-step explanation:

A cone has a diameter of 6 inches and a height of 6 inches. Find the volume of the cone to the nearest tenth. Use 3.14 for pi.

Answers

Answer:

The volume is 56.6 rounded

Step-by-step explanation:

56.6 rounded , this should be the correct answer I remember doing this in 7th grade

5y > 10 please help!!

Answers

it’s 2 because if you’re solving for y than you would get 2

Answer:divide each term by 5

Step-by-step explanation:

EXPERT HELP I'LL GIVE BRAINLIEST:

Answers

I believe it is D. 31.4
the answer is : C 78.5 yd

Which situation is best described by a positive integer?

A. a height of 75 yards
B. a loss of 9 pounds
C. a decrease of 4 points
D. 3 degrees below 0

Answers

A is the correct answer
A . a height of 75 yards

thank u................

Answers

Answer:i am sure it is

B

Step-by-step explanation:

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Answer:

y= -100 x= 100

Step-by-step explanation:The form y=mx+b means slope m and y-intercept b; similarly, the form y=mx+a means slope m and y-intercept a. The form y=m(x-a) is essentially different from the other two forms, and means slope m and x-intercept (instead of y-intercept) a.

Answer:

lol

Step-by-step explanation:

ysah mgm lol shh no auto corre

Jamie goes to school 5 times a week. Determine the equation if w represents the number of weeks and t represents the total number of times Jamie went to school
A. t = 5w
B. w = 5t
C. t = 5 + w
D. w = 5 + t

Answers

Answer:

t=5w

Step-by-step explanation:

because if you multiple 5 days by the number of weeks (w) Jamie attends schools you will get t which is the total number times Jamie goes to school.

Answer:

A. t = 5w

Hope this helps!

Pls help me with maths. Attachment below.

Answers

Answer:

First is zero slope

Second is negative slope

Thirs is positive slope

Step-by-step explanation:

Answer:

1. Zero Slope

2. Negative Slope

3. Positive Slope

Step-by-step explanation:

lol ok stuck here too

Answers

Answer:

axis

Step-by-step explanation:

I don't know explanation but its the answer to you question i think

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