Use the number line to show and explain why 4/10 ÷ 2 and 4/10 × 1/2 both equal 2/10

Answers

Answer 1

Step-by-step explanation:

When you divide by a number, you basically are multiplying by the reciprocal

The reciprocal of 2 is 1/2

4/10 ÷ 2 = 4/10 × 1/2 = 2/10

4/10 × 1/2 = 2/10

Using a number line,

Start at 4/10 and move down by 2 until you reach 0

Start at 4/10 and move up by 1/2 from 0 until you reach 4/10

(Count the number of humps)

Both will be the same


Related Questions

)
Write the following number in scientific notation: 26,801.
A.
2.6801 x 104
B.
2.6801 103
C.
26.801 x 103
D.
2680.1 ~ 104

Please answer

Answers

a: 292892 b: 2972 c: 9272726: d: 196373

Answer:

The answer is 2.6801 x 10^4

(06.01)A class has 14 girls and 12 boys. What is the probability that a girl's name is drawn at random?
14 over 12
14 over 26
12 over 14
12 over 26

Answers

Answer:

B 14 over 26.

cause it's girls out of everyone

Step-by-step explanation:

Answer:

14 over 26

Step-by-step explanation:

i got it right on flvs

4 - 3 2/10g = 9 1/2
solve for the variable.

Answers

Answer:

you add then add again

Step-by-step explanation:

culture

Fill in the missing number
7x3=(__x3)+(4x3)

Answers

Answer:3

Step-by-step explanation:

7x3=21 4x3=12 21÷12=9 3x3=9

Answer:

3

Step-by-step explanation:

7 × 3 = (x × 3) + (4 × 3)21 = 3x + 123x = 21 - 123x = 9x = 9/3x = 3

7 × 3 = (3 × 3) + (4 × 3)

GIVING BRAINIEST IF RIGHT!! ANSWER FAST PLEASE

The table below shows the distance covered by a train over time.
Do the numbers in the table represent a proportional relationship? Why or why not?

A. No, because the ratios simplify to the same number.
B. Yes, because the ratios simplify to the same number.
C. No, because the ratios don't simplify to the same number.
D. Yes, because the ratios don't simplify to the same number.

Answers

Answer:

I think its B.) Yes, because the ratios simplify to the same number., sorry if it's wrong

Step-by-step explanation:

50/10 = 1/5

60/12 = 1/5

70/14 = 1/5

80/16 = 1/5

They all simplify to the same proportion.

-6n-2n=16


This isn't urgent

Answers

I’m pretty sure n = -2

Answer:

n = -2

Step-by-step explanation:

[tex] - 6n - 2n = 16[/tex]

➡️ [tex]( - 6 - 2)n = - 8n[/tex]

➡️ [tex] - 8n \div ( - 8) = 16 \div ( - 8)[/tex]

➡️ [tex]n = 16 \div ( - 8)[/tex]

➡️ [tex]n = - 16 \div 8[/tex]

➡️ [tex]n = - 2[/tex]

which expression is equivalent to 3x -5?​

Answers

Answer:

3x - 5 = 3x + (-5)

Step-by-step explanation:

Helppp!!!!!
I need answer to both of these
This is important
You will be mark brainliest you give me and answer
to this
True or False questions

Answers

Answer:

true, false, true

Step-by-step explanation:

it only changes the direction

help vvvvvvvvvvvvvvvvvvv

Answers

i think C would be it

Which of the following terms are constants in the following equation: 13x + 5y - 2 = 3. Select all that apply.

A. 13
B. 3
C. -2
D. 5

Answers

C.-2 calculated it your welcome
-2 because it does not have a variable attached that can make it larger or smaller

find the volume of a prism 5 feet tall whose base is a right triangle with leg lengths 3/2 feet and 9 feet

Answers

Answer:

33.75

Step-by-step explanation:

The volume of a right triangle prism is 33.75 cubic feet which is 5 feet tall.

It is given that the prism is 5 feet tall whose base is a right triangle with leg lengths of 3/2 feet and 9 feet.

It is required to find the volume of the prism.

What is volume?

It is defined as a three-dimensional space enclosed by an object or thing.

We have 5 feet tall prism ie.

height of the prism h = 5 feet

and base b = 3/2 feet

and length = 9 feet

We know the volume of the right triangle prism is given by:

[tex]\rm V = \frac{b\times h\times l }{2}[/tex]

Putting the values of b, h, and l, we get:

[tex]\rm V =\frac{\frac{3}{2} \times 5\times 9}{2}[/tex][tex]\rm V = \frac{3 \times 5\times 9}{2\times2} \Rightarrow \frac{135}{4}[/tex]

V = 33.75 cubic feets

Thus, the volume of a right triangle prism is 33.75 cubic feet which is 5 feet tall.

Learn more about the volume here:

https://brainly.com/question/16788902

X/8 = 3/12 what does x equal ?

Answers

Answer:

-72

Step-by-step explanation:

the answer is -72...........

Answer:

2

Step-by-step explanation:

12 divided by 3 = 4 which would give you the idea that 8 needs to be divided by 4 which give you 2

The solution of 2x-4=20 is​

Answers

Answer:

12

Step-by-step explanation:

2*12-4=20

Answer:

x = 12

Step-by-step explanation:

2x - 4 = 20

2x = 20 + 4

2x = 24

x = 24/2

x = 12

SOMEONE HELPPPP PLS!!!?

Answers

Answer:

1

Step-by-step explanation:

:)

Answer:

1

Step-by-step explanation:

3(2x+1)=9      *multiply 3 to 2x and 1*

6x + 3 = 9     *subtract 3 from both sides*

6x = 6           *divide each side by 6

x=1

A triangle has sides with lengths of 7 miles, 7 miles, and 9 miles. Is it a right triangle yes or no

Answers

Answer:

No

Step-by-step explanation:

How old am I if 400 reduced by 3 times
my age is 181?

Answers

You would be 73. 400-(your age*3)=181

Answer:

45

Step-by-step explanation:

i need help what does this equal to?
Write the quadratic equation in standard form: 5x^2-7x-13=-3

Answers

Answer:

x=\frac{7+\sqrt{249}}{10},\:x=\frac{7-\sqrt{249}}{10}

Step-by-step explanation:

Answer:

f(x) = 5x^2−7x−10

Step-by-step explanation:

Quadratic equation standard form is f(x) = ax^2 +bx + c . All you had to do was add 3 to both sides of the equation to change this into standard form. :)

PLEASE HELP!!!
A ladder leans against a brick wall. The foot of the ladder is 6 feet from the wall. The ladder reaches a height of 15 feet on the wall. Find to the nearest tenth, the angle the ladder makes with the wall. Show Work..

Answers

Answer and Step-by-step explanation:

Answer is in picture.

We have to use the trig function Tangent, noted as tan.

Tan uses opposite over adjacent sides.

then, to get x by itself, you do [tex]tan^{-1}[/tex] (tan^-1)

#teamtrees #PAW (Plant And Water)

find the length of the bold arc. Round your answer to the nearest tenth.

Answers

Answer:

62.83 m

Step-by-step explanation:

Given that,

The radius of the circle, r = 15 cm

Major angle = 240°

We need to find the length of the bold arc. The formula used to find the arc length is given by :

[tex]l=\dfrac{\theta}{360}\times 2\pi r\\\\=\dfrac{240}{360}\times 2\pi \times 15\\\\=62.83\ m[/tex]

So, the length of the bold arc is equal to 62.83 m.

Roberto has $71 to buy baseballs for his little league team. Each baseball
costs $7. How many baseballs can he buy? Do not include units in your
answer.

Answers

Answer:

10

Step-by-step explanation:

he can buy 10 because 7×10=70

Answer:

10

Step-by-step explanation:

Solve for x. Round all answers to the nearest tenth

Answers

Find the length of an arc that subtends a central angle of 172 in a circle of radius 7 in.
arc-length =
in
Please help

0.6 + 15 b + 4 = 25.6.

Answers

Answer:

0.6 + 15b + 4 = 25.6

15b +4 = 25

15b = 25 - 4

15b = 21

b = 21/15

b = 7/5

hope it helps

Answer:

Exact Form:

b=7/5

1. Write the ratio of the first measurement to the second: 8 ft. 4 in. to 6 in.

Answers

Answer:

6:100 or 3:50

Step-by-step explanation:

8ft 4 in = 100 inches

If a Point E lies between two points D and F such that DE = EF, then prove that DE = 1/2 DF. Explain by drawing the figure.​

Answers

Answer:

Step-by-step explanation:

DE = EF

DF = DE + DF

     = DE + DE

DF = 2DE

2DE = DF

DE = (1/2)DF

hello like almost everyone else on here, I'm probably gonna fail so uh help, please? In your own words explain how to multiply/divide radical expressions? How do you know if you can or cannot simplify them?

Answers

Answer: It does not matter whether you multiply the radicands or simplify each radical first. You multiply radical expressions that contain variables in the same manner. As long as the roots of the radical expressions are the same, you can use the Product Raised to a Power Rule to multiply and simplify.

Step-by-step explanation:

Amber is on a family cell phone plan with the other 2 members of her family. The family gets 744 shared cell phone minutes a month, and each family member is limited to his or her equal share of the minutes. The only free calls are calls between family members. How many minutes per day can Amber talk on her cell phone with her friends during a 31-day month, without going over her share of the minutes?

Answers

Answer:

8 Minutes

Step-by-step explanation:

When dividing  744 by 3 family members you will get 248 minutes, but then dividing by 31 to tell the number for how long they can all be on per day you will get 8. 744 ÷ 3 ÷ 31 = 8.

Find the measure of the arc indicated. (Only type the number.) *

Answers

Answer:

61 degrees

Step-by-step explanation:

The answer is 61 degrees.

5. What's the fraction 18/24 reduced to its lowest terms?
O A. 18/24
ОВ. У.
O c. %12
D. 2418

Answers

Answer:

The answer is 3/4, i don't know why that's not a choice....

Step-by-step explanation:

Plssss help

Write the equation in slope intercept form:
3x + 6y = 18

Answers

Answer:

Step-by-step explanation:

i dont really know what u were asking but the slope is Slope = 1/2.

Put the following equation of a line into slope-intercept form, simplifying all fractions. 4y - 4x -32​

Answers

Answer:

y=-4x+4x-32

Step-by-step explanation:

Answer:

y=x-8

Step-by-step explanation:

4y-4x=-32

4y=4x+(-32)

4y=4x-32

y=4/4x-32/4

y=x-8

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