Using divisibility tests, check whether the number 240720 is divisible by
2, 3, 4, 5, 6, 8, 9, 10 and 11. (Give reason)

Answers

Answer 1

Answer:

Let's see each case.

a) 2

We know that a number is divisible by two if it ends in {0, 2, 4, 6, 8}

In our case, we have 240,720

We can see that it ends with a zero, so it is divisible by 2.

b) 3

A number is divisible by 3 only if the sum of its digits is a multiple of 3.

For our number, the sum of the digits gives:

2 + 4 + 0 + 7 + 2 + 0 = 2 + 4 + 7 + 2 = 6 + 9 = 15

15 is a multiple of 3, then 15 is divisible by 3.

then 240,720 is divisible by 3.

c) 4

A number is divisible by 4 if the last two digits form a number that is divisible by 4.

In this case, the last two digits are 2 and 0, so they form the number 20

and we know that 20 = 4*5 is a multiple of 4.

then 20 is divisible by 40

then 240,720 is divisible by 4

d) 5

A number is divisible by 5 if it ends in 0 or 5.

Our number ends in a 0, so it is divisible by 5.

e) 6

A number is divisible by 6 if it is divisible by 2 and 3.

We already know that our number is divisible by 2 and 3, so we can conclude that it is also divisible by 6.

f) 8

A number is divisible by 8 if, in the case where the hundreds digit is odd, the number obtained from the last two digits plus 4 must be divisible by 8.

in the case where the hundreds digit is even, the number formed by the last two digits must be divisible by 8.

In our case the hundreds digit is 7, so it is odd, so we will use the first criteria.

The last two digits form the number 20

if we add 4, we get:

20 + 4 = 24

And 24 is a multiple if 8:  8*3 = 24

Then 24 is divisible by 8, then 240,720 is divisible by 8.

g) 9

Similar for the case of the 3, a number is divisible by 9 if the sum of its digits is divisible by 3.

We know that the sum of the digits of our number is 15, which is not divisible by 9, then our number is not divisible by 9

h) 10

A number is divisible by 10 if the last digit is a zero.

In this case the last digit is a zero, so  240,720 is divisible by 10.

i) 11

A number is divisible by 11 if:

starting from the left, you need to add and subtract each subsequent digit, if this is divisible from 11, then the original number is divisible by 11.

Then for  240,720 we have:

2 - 4 + 0 - 7 + 2 - 0 = -2 - 5 = -7

-7 is not divisible by 11, so our number is not divisible by 11


Related Questions

Complete the work to calculate the scale factor. 1. Scale factor = StartFraction Scale drawing dimension over original dimension EndFraction. 2. Enter the corresponding lengths: StartFraction 24 over 3 EndFraction. What is the scale factor?

Answers

Answer:

8

Step-by-step explanation:

To obtain scale factor of a particular drawing:

We use the relation:

Scale factor = Scale drawing dimension / original dimension

Given :

Scale drawing dimension = 24

Original dimension = 3

Scale factor = 24 / 3

Scale factor = 8

Answer:

an enlargement

Step-by-step explanation:

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

[tex]slop = \frac{2 - 1}{2 - 0} = \frac{1}{2} \\ for \: point \: x = 0 \: y = 1 \\ y - 1 = \frac{1}{2} \times (x - 0) \\ y = \frac{1}{2} x + 1[/tex]

Work out the perimeter of this shape.

Answers

Answer: 72.6 cm

Step-by-step explanation:

Data: the length of the sides we know=13 cm, 16 cm 7.3 cm, 5.7 cm, 6.2 cm

The length of the side in the middle=x

The perimeter of the shape=x

Step one, Find the length of the missing side by adding then subtracting

5.7+6.2=11.9

16-11.9=4.1

x=4.1 cm

Reason: If you want to find the missing side, we know that the entire side down there is 16 cm so we just add 5.7 to 6.2 to get 11.9 and the amount of cm left after subtracting 11.9 from 16 will be the length(l) of the missing side.

Step two, add up all the sides

13+13+16+7.3+7.3+4.1+5.7+6.2=72.6

Reason: To find the perimiter of a shape, you add up all the sides and since we have all of the sides(some sides appear twice) we can just add them all together for the answer.

Also, don't forget the 'cm' in the answer

x=72.6 cm

I hope this helps!

Ben is paid £12.50 per hour.
If he works for more than 7 hours in a day, he is paid overtime for the additional hours at a rate of 1.4 times his normal rate of pay.
Yesterday, Ben worked for 9 hours.
How much money did he earn?

Answers

Answer:

157,9 pounds

Step-by-step explanation:

we know that he earn 12,50 per hour and that more  than 7 hour of work he earn x 1,4 than the normal.

1-  12,5 x 1,4= 17,5

2- 17,5 x 9 = 157,5

hope i helped u!!

Find the indicated area under the curve of the standard normal​ distribution; then convert it to a percentage and fill in the blank. About​ ______% of the area is between z1 and z1 ​(or within 1 standard deviation of the​ mean). About 68 nothing​% of the area is between z1 and z1 ​(or within 1 standard deviation of the​ mean).

Answers

Answer:

68% of the area

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this question:

By the Empirical Rule, 68% of the area is within 1 standard deviation of the mean.

Answer:

the correct answer is 68.27%

Step-by-step explanation:

What is the surface area of a sphere with a radius of 21 units

Answers

Hope this helps

Answer: 5541.77

formulae is 4πr²4×22/7×21²4×22×3×21cause 7 divided the first 21 which gave it 3answer=5544cm²

help me in these please. You will then get BRAINLIEST ​

Answers

1 Ques

Answer

a) Subtract x from both sides:

Divide both sides by -4 to get:

(b)

Add x to both sides:

Subtract 16 from both sides:

Divide both sides by 26 to get:

Simplify:

(c)

Add 12 to both sides:

Subtract x from both sides:

Divide both sides by 7 to get: or we can write

Help me now NO LINKS OR FAKE ANSWERS OR YOU WILL BE REPORTED Thanks for helping the image is above ¡ ​

Answers

Answer:19 would be 79 because you would do 8 plus itself 7 times which would be like 8*7 which is 56 so 56+23 is 79 im not sure what 18 is because im not sure if its x*2 or x^2 but 20 would just be 38/4 which is 9.5 so the answer for 20 is that Becca makes $9.5 dollars an hour.

Step-by-step explanation:

- 2.7f+0.3f-12- 5 =
Plss help i need the answer right now plss.​

Answers

Answer:

2.4f-17

Add similar elemets : 2.7f + 0.3f =2.4f

Subtract the numbers:-12 - 5= -17

Answer:

- 2.4f - 17

Step-by-step explanation:

Given

- 2.7f + 0.3f - 12 - 5 ← collect like terms

= - 2.4f - 17

(2) Find the geometric mean. Approximate your answers to the approxi-
mate to nearest tenth.
4.
5 and 20
5. 3 and 12
7.
3.5 and 20
6.
8 and 13
9. į and
8.
1.5 and 84
M

Answers

Answer:

Geometric mean is the nth root of the product of n numbers

For two numbers it's the square root

for three numbers it's the cube root

for 4 numbers it's the fourth root

etc.

--------------------------

5 and 20

m = √(5 * 20) =

m = √100

m = 10

3 and 12

m = √(3 * 12)

m = √36

m = 6

do the rest the same way

Find the area of the triangle. (A = 1/2*b*h)

Answers

the area is 9.8 :)) have a good day

if f(x)= 10 – 2x and g(x) = 6x - 5, then (f+g)(x) =

Answers

Answer:

4x +5

Step-by-step explanation:

f(x)= 10 – 2x

g(x) = 6x - 5

(f+g)(x) =10 – 2x + 6x - 5

Combine like terms

            = 4x +5

Answer:

( f + g )( x ) = 4 x + 5

Step-by-step explanation:

f ( x ) = 10 - 2 x

g ( x ) = 6 x - 5

( f + g )( x) = ( (10 - 2 x ) + (6 x -5) )

= 10 - 2x + 6 x - 5

combine like terms

= 2 x + 6 x + 10 - 5

= 4 x + 5


What is the measure of angle NLP?

55
90

Answers

Answer:

55° , i dont know how to explain but its correct. it is an acute angle though.

Answer:

55 is a correct answer.......

4.2 To buy a new car is not a very good investment. In the first year the car will
decrease in value by 25%.
4.2.1
If the car costs R200 000, what will it be worth after 1 year?

Answers

Given:

In the first year, the car will decrease in value by 25%.

The cost of a car is Rs. 200,000.

To find:

The worth of the car after 1 year.

Solution:

The cost of a car is Rs. 200,000 and in the first year the car will decrease in value by 25%. So, the worth of the car after 1 year is:

[tex]Worth=200000-\dfrac{25}{100}\times 200000[/tex]

[tex]Worth=200000-\dfrac{1}{4}\times 200000[/tex]

[tex]Worth=200000-50000[/tex]

[tex]Worth=150000[/tex]

Therefore, the worth of the car after 1 year is Rs. 150,000.

I really need some help. Plz show your work, Thanks!

Answers

Answer:

Step-by-step explanation:

Given that HCF (306,657) = 9, find LCM (306,657)​

Answers

306 = 9 x 34
657 = 9 x 73
LCM(306,657) = 9 x 34 x 73 = 22338

In general the LCM(a, b) = ab / HCF(a, b)

Answer:

The LCM of 306 and 657 is 22338

Step-by-step explanation:

We know that

HCF (a, b) × LCM (a, b) = a × b

⇒ HCF (306, 657) x LCM (306, 657) = 306 × 657

⇒ 9 × LCM = 306 × 657

⇒ LCM (306, 657) = 306 × 657 / 9

                              =  201042 / 9

∴ LCM = 22338

Thus, the LCM of 306 and 657 is 22338.

Paul started a company. In the first year, his company built 6 structures. The number of structures that his company built doubled every year.

How many structures did paul’s company built in the 5th year?

A. 90
B. 9
C. 192
D. 186

Answers

Answer:

D=186

Step-by-step explanation:

you have to times the number of structures that doubles in a-year so 6×2 then multiply by the years

d 186 because if i’m black and your black we both blake

Help me please ASAP

Answers

ans is c it is simple c only meet the need of questions

Some plz help meeeeeeeeeeereee I really neeeeeeeeeddddddddd ittttttttttt

Answers

I’m pretty sure the answer is A

Art class is 5% of an hour each school day. How many hours of art does a student have in five days ?

*no links are allowed. *

Answers

Answer:

okay, so ... In a day, We all have 24 hours in a day

60 mins = 1 hr

5%

5/100×1 hr=

5 days =

okay, this is difficult

given the function k(x) = 3x -2, k(4) equals?

Answers

Answer:

10

Step-by-step explanation:

3(4) -2 = 12 - 2 = 10

I need a answer asapppppppp

Answers

Answer:

0.97

Step-by-step explanation:

in this case the number 1 signifies 100 percent hence

1-0.03=0.97

:))) enjoy your day

If it’s out of 100% it should be 99.97%!

Evaluate the expression when m=4 and n=31.
n-3m

Answers

Answer:

19

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

Identify

m = 4

n = 31

n - 3m

Step 2: Evaluate

Substitute in variables:                                                                                     31 - 3(4)Multiply:                                                                                                             31 - 12Subtract:                                                                                                            19

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

19

»»————- ★ ————-««  

Here’s why:

⸻⸻⸻⸻

[tex]\boxed{\text{Calculating the Answer...}}\\\\n-3m;\text{ } m= 4, n = 31\\---------\\\rightarrow 31-3(4)\\\\\rightarrow 31 - 12\\\\\rightarrow \boxed{19}[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

please help :))))))))

Answers

Answer C explanation: Alternate interior angles are always congruent

15 _ { 10 } + X _ { 2 } = 11011 _ { 2 }​

Answers

11011₂ = 2⁴ + 2³ + 2¹ + 2⁰ = 27

15 + x₂ = 27

x₂ = 12 = 8 + 4 = 2³ + 2² = 1100

Find the area of the following shape:

Answers

Answer:

19 cm²

Step-by-step explanation:

→ Work out the area of the rectangle

1 × 7 = 7

→ State the formula for the area of the triangle

0.5 × base × height

→ Find the base and height

Base = 3 and height = 8

→ Substitute values into formula

0.5 × 3 × 8 = 12

→ Add this total to the rectangle formula

12 + 7 = 19 cm²

What’s the value of x?
G

53°
45
H


Answers

Answer:

x = 98°

Step-by-step explanation:

95 + 53 + (180 - x) = 180

148 + 180 - x = 180

328 - x = 180

328 - x + x = 180 + x

x + 180 = 328

x + 180 - 180 = 328 - 180

x = 98°

The required measure of the remote exterior angle x is 98°.

Given that,

A triangle has shown,
Where two remote interior angles with measures 45° and 53° are given and a remote exterior angle with measure x is given, we have to determine the value of x.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

What is the angle?

The orientation of one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as the angle.

Here,
There is a property of a triangle that, the sum of the remote interior angle is equal to the measure of the remote exterior angle. So,
x = 53 + 45
x = 98°

Thus, the required measure of the remote exterior angle x is 98°.

Learn more about Angles here:

https://brainly.com/question/13954458

#SPJ1


The city of Plainview is building a new sports complex. The complex includes eight baseball fields, four soccer fields, and three buildings that have


concessions and restrooms. Arrange the structures in the sports complex using translations, reflections, and rotations so that the final


arrangement satisfies each of these criteria:


. All the fields and buildings fit on the provided lot.


• Each field is adjacent to at least one building for ease of access.


. Two or more fields can be adjacent, but no two fields should share the same boundary (e.g., a sideline or a fence.)


• For safety reasons, no baseball field should have an outfield (the curved edge) pointed at the side (the straight edges) of another baseball


field.

Answers

Answer:

See Explanation

Step-by-step explanation:

(Please Find Diagram in the attachment)⇒Answer Drawing is Given There.

According to the question,  

Given that, The city of Plainview is building a new sports complex. The complex includes eight baseball fields, four soccer fields, and three buildings that have concessions and restrooms. Now, Arrange the structures in the sports complex using translations, reflections, and rotations so that the final arrangement satisfies each of these criteria: All the fields and buildings fit on the provided lot. Each field is adjacent to at least one building for ease of access. Two or more fields can be adjacent, but no two fields should share the same boundary (e.g., a sideline or a fence.) For safety reasons, no baseball field should have an outfield (the curved edge) pointed at the side (the straight edges) of another baseball field

6 cars 4 people in each car HELP I HAVE 3 minutes

Answers

Answer:

Here we have 6 cars.

And we know that there are 4 people in each car.

The question is incomplete, I assume that we want to find the total number of people in the 6 cars.

So, again, there are 6 cars, and 4 people in each one.

Then we have 6 times 4 people.

This is equal to the product between 6 and 4, which is:

6*4 = 24

There is a total of 24 people in the 6 cars.

Price of a mobile phone including 10% GST is rs.16,600. Find the p[rice of mobile phone before gst was added

Answers

Answer:

16,600 = 110%, you can do this in your head minus 1,660 GST (whatever that is) 14,940

Step-by-step explanation:

Other Questions
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