Find the sum of the prime numbers less than 21

Answers

Answer 1

Answer:

1;3;5;7;11;13;17;19 add all the number

Answer 2

Answer:

Step-by-step explanation:

Prime numbers less than 21 are

2, 3,5,7,11,13,17,19

Sum= 79


Related Questions

Mr Johnson has 4 boxes of pencils with 7 pencils
in each box. If he gives each of his 26 students a
pencil, how many pencils will he have left?

Answers

Answer:

2 pencils leftover

Step-by-step explanation:

Given:

4 boxes with 7 pencils each

Number of students:

26

Total Pencils

4*7 = 28

He has 28 pencils in total.

Unknown:

Number of extra pencils

Unknown = total pencils - total students

= 28 - 26 = 2

Answer  = 2 pencils leftover

Hope this helped,

Kavitha Banarjee

A student traded four pieces of chocolate pour seven pieces of hard candy at this rate how many pieces of chocolate could be treated for 35 pieces of hard candy

Answers

Answer: 20 pieces of chocolate could be treated for 35 pieces of hard candy.

Step-by-step explanation:

Equation of direct proportion between two quantities x and y :

[tex]\dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}[/tex]

Put [tex]x_1=4,\ y_1=7,\ y_2=35, x_2=x[/tex]

[tex]\dfrac{4}{7}=\dfrac{x}{35}\\\\\Rightarrow\ x=\dfrac{35\times4}{7}\\\\\Rightarrow\ x=20[/tex]

Hence, 20 pieces of chocolate could be treated for 35 pieces of hard candy.

Will mark Brainliest

what is the range of the function

Answers

The range of the function is [-6, 4], as those are the lowest and highest y values, respectively.

True or False: A check is a document that directs the bank to deduct money from your account and make a payment

Answers

Answer:true

Step-by-step explanation: An order to a bank to pay a stated sum from the drawer's account, written on a specially printed form.

The answer is true.

John uses 1 2 3 cups of milk to make a sauce recipe, and then uses 2 1 4 cups of milk to make a cake recipe. How much milk did he use in total to make the two recipes?

Answers

Answer:

3.91

Step-by-step explanation:

It is given that,

John uses [tex]1\dfrac{2}{3}[/tex] cups of milk to make a sauce recipe, and then uses [tex]2\dfrac{1}{4}[/tex] cups of milk to make a cake recipe.

We need to find how much milk did he use in total to make the two recipes. It can be calculated by simply adding  [tex]1\dfrac{2}{3}[/tex] cups of milk and  [tex]2\dfrac{1}{4}[/tex] cups of milk. So,

[tex]T=1\dfrac{2}{3}+2\dfrac{1}{4}\\\\=\dfrac{5}{3}+\dfrac{9}{4}\\\\=3.91[/tex]

So, she will need 3.91 units of milk to make the two recipes.

Solve the equation.

8 – 2x = –8x + 14

Will give Brainliest if explained.

Answers

Answer:

x = 1/3

Step-by-step explanation:

Move all terms containing x to the left side of the equation.

8+6x=10

Move all terms not containing x to the right side of the equation

6x=2

Divide each term by 6 and simplify.

Exact Form:

x=1/3

Decimal Form:

x=0.3333333333

Hope this helps!

HELP PLS
What is the domain of the function y= Vx+6 -7?
x²-7
X-6
x26
x7

Answers

domain = -6 (the second one)

The domain of the function is [ - 6 , ∞ ]

What is range & domain?

The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x). The range of a function is the set of values that the function assumes. This set is the values that the function shoots out after we plug an x value in.

here, we have,

A radical function is the one provided.

It should be noted that a radical function can only be specified for values that will result in the radicand being larger than or equal to zero.

As a result, either the radicand of the provided function must be larger than or equal to zero, or:

Thus we can write it as

x + 6 ≥ 0

subtract 6 from both LHS and RHS

x + 6 - 6 ≥ 0 - 6

x ≥ - 6

Therefore the domain of the function is [ - 6 , ∞ ]

To know more about domain and function you may visit the link which is mentioned below:

brainly.com/question/13113489

#SPJ7

2 Write the equation of the line that goes
through (-2, 4) and is parallel to the line y = 1/2 x + 2

Answers

hi

if the twi lines are  parallel , they have the same slope.

So  slope  is   1/2.  

equation of a line is  :  mx +p

The line goes throught  (-2 ; 4)

We have    1/2 ( -2)  + p =  4

                   -  2/2  +p = 4

                   -1 +p = 4

                       p = 4+1

                       p = 5

equation of the line  is   y = 1/2x +5

Paul's bank account used to have $1,250 dollars in it. After saving and following a strict budget he manages to increase that amount by 40%. How much money is in his bank account now?

Answers

Answer: $1750

Step-by-step: see the picture

Please mark me brainliest!! :)

The tens digit of a two-digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 less than the number itself. Find the number.

Answers

Answer:

43

Step-by-step explanation:

Let

The unit digit = x

The tens digit = y

The number = 10x + y

The tens digit of a two-digit number is five more than the units digit.

y = x + 5

Seven times the sum of the digits of this number is 3 less than the number itself.

7(x + y) = 10x + y - 3

7x + 7y = 10x + y - 3

Find the number.

We substitute x + 5 for y

7x + 7(x + 5) = 10x + (x + 5) - 3

7x + 7x + 35 = 10x + x + 5x - 3

14x + 35 = 11x + 5x - 3

Collect like terms

35 + 3 = 11x + 5x -14x

38 = 16x - 14x

38 = 2x

x = 38/2

x = 19

Solving for y

y = x + 5

y = 19 + 5

y = 24

The number = 19 + 24

= 43

Answer:

The correct answer is 94

Step-by-step explanation:

Choose the statement that is correct about the word “GIGGLING”

Answers

Answer:

e

Step-by-step explanation:

e

Answer:

Giggling is laughing..?

Step-by-step explanation:

i wish i can help but i dont know what the answer choices are..

CAN SOMEONE HELP PLS

Answers

Answer:

A

Step-by-step explanation:2^4*6^4=20736 which is equal to (2*6)^4

Answer:

A

Step-by-step explanation:

Sydney is going to a carnival that has games and rides. Each game costs $1.25 and each ride costs $2.25. Sydney spent $24.25 altogether at the carnival and the number of rides she went on is 3 more than the number of games she played. Determine the number of games Sydney played and the number of rides Sydney went on

Answers

Answer:

8 rides and 5 games

Step-by-step explanation:

2.25x+1.25y=24.25      2.25(8)+1.25(5)=24.25         18+6.25=24.25

Suppose there are two blocks of solid iron. One block is a cube, three inches on a side. The other block is a cube three miles on a side. Obviously, the large cube is many, many times greater volume than the small cube, and many, many times heavier. Is the large cube more dense than the small cube, or less dense?

Answers

Answer:

The density is the same because both cubes are composed of the same element Iron(Fe).

Answer:

I believe the large cube would be denser.

Step-by-step explanation:

Will mark Brainliest. Question above

Answers

Area = (10 * 14) + (1/2 * 6 * 10) = 170m^2


I’m only asking for #1

Answers

Answer:

3. 6

4. 9

5. 12

6. 15

Step-by-step explanation:

The commission on the sale of a property is 5.5% of the value. What is the commission on the sale of a property that has the same percentage of the value of $21,450?

Answers

Answer: $1179.75

Step-by-step explanation:

Percentage of commission = 5.5%

Value of property = $21,450

Commission = Percentage commission × Value of property

= 5.5% × $21,450

= 5.5/100 × $21,450

= 0.055 × $21,450

= $1179.75

The commission is $1179.75

What is the quotient of Three-fourths and StartFraction 5 Over 6 EndFraction?

Answers

Answer:

9/10

Step-by-step explanation:

Answer:

9/10

Step-by-step explanation:

right on EDG2020 trust me:P

The maximum speed possible on a length of railroad track is directly proportional to the cube root of the amount of money spent ob maintaining the track. Suppose that a maximum speed of 25 km/hr is possible on a stretch for which 450,000 was spend on maintence, find the maximum speed if the amount spent on maintence is increased to $1,750,000 Pls help me show steps please

Answers

Answer:

[tex]39.29\ \text{km/h}[/tex]

Step-by-step explanation:

s = Speed of the train

m = Money spent on maintanence

[tex]s\propto m^{\dfrac{1}{3}}[/tex]

Let k be the constant of proportionality so

[tex]s=k (m)^{\dfrac{1}{3}}[/tex]

Now a case is given where 25 km/hr is possible on a stretch for which 450,000 is spent so

s = 25

m = 450000

[tex]s=k (m)^{\dfrac{1}{3}}\\\Rightarrow k=\dfrac{s}{m^{\dfrac{1}{3}}}\\\Rightarrow k=\dfrac{25}{450000^{\dfrac{1}{3}}}\\\Rightarrow k=0.326[/tex]

Now when m = 1750000

[tex]s=k (m)^{\dfrac{1}{3}}\\\Rightarrow s=0.326\times 1750000^{\dfrac{1}{3}}\\\Rightarrow s=39.29\ \text{km/h}[/tex]

The maximum speed of the train would be [tex]39.29\ \text{km/h}[/tex].

please someone help me please??!!!​

Answers

Answer:

how should I know?

Step-by-step explanation:

Answer:

a.)

x= -2 , -1, 0, 1, 2, 3

y=8 , 7, 6, 5, 4, 3

and for b just plot the point and then connect them. im not sure how i can show you

Step-by-step explanation:

ANSWER ASAP
What is the length of Line segment B C, rounded to the nearest tenth?
13.0 units
28.8 units
31.2 units
33.8 units

Answers

Answer:

28.8

Step-by-step explanation:

Answer:28.8

Step-by-step explanation:

solve equation by factoring 8x^2-8x=0

Answers

Answer: x= 0 or x= 1

Step by step:

Step 1: Factor left side of equation.

= 8x (x – 1) = 0

Step 2: Set factors equal to 0.

= 8x = 0 , x = -1 = 0

= x = 0 , x = –1

ANOTHER MATH QUESTION, PLEASE HELP !
( WILL MARK BRAINLIEST !!!! )

Answers

Look I saw you post like a million of these. Functions are time consuming, especially rate of change, I suggest you ask a tutor!

The rate of change is -2

3. It takes 200 lb of sugar cane to produce 5 lb
of refined sugar. How many pounds of sugar
cane does it take to produce 200 lb of refined
sugar?
A. 2,500 lb
B. 7,500 lb
C. 7,700 lb
D. 8,000 lb

Answers

8000 pounds is required to produce 200 lb of refined sugar

How to calculate the amount of pounds that is required to produce 200 lb of refined sugar?


It takes 200 lb of sugar cane to produce 5 lb of refined sugar

For 1 lb of sugar cane, the number of refined sugar that will be produced is

200= 5

x= 1

cross multiply

5x= 200

x= 200/5

x= 40

The number of pounds of sugar cane required to produce 200 lb of refined sugar is

= 40 × 200

= 8,000

Hence 8000 pounds of sugar cane is required to produce 200 lb of refined sugars

Read more on pounds here

https://brainly.com/question/22851115

#SPJ1

In the inequality 2x + $10,000 ≥ $70,000, x represents the salary of an employee in a school district. Which phrase most accurately describes the employee's salary?

Answers

Options:

A. At least $30,000

B. At most $30,000

C. Less than $30,000

D. More than $30,000

Answer:

A. At least $30,000

Step-by-step explanation:

Given the inequality :

2x + $10,000 ≥ $70,000 ;

Where x salary of an employee ;

Phrase which describes the employee's salary, x

2x + 10000 ≥ 70000

2x ≥ 70000 - 10000

2x ≥ 60000

x ≥ 60000 / 2

x ≥ 30000

Salary ,x, is greater than or equal to $30000

Mr. Moretti is making welcome bags to give to the 18 students in his homeroom on the first day of school he puts m mechanical pencils in each bag he puts twice as many regular pencils in each bag

Answers

Answer:

The total number of pencils is 6

Step-by-step explanation:

According to the given scenario, the computation of the total number of pencils is as follows:

There are 18 students

And let us assume there is m mechanical pencils that put in each bag

also he put twice of the regular pencil

So if he put the 3 mechanical pencil

So, the total number of pencils is

= 3 × 2

= 6

As it twice of the regular pencil

hence, the  total number of pencils is 6

Rewrite the product as a power: a^7 *y^7

Answers

Answer:

ay^7

Step-by-step explanation:

just give me the points.

What are the 3 steps to use when dividing fractions? (i know this, just testing peoples knowledge!)

Answers

Answer:di vi de

Step-by-step explanation:sorry I’m tryna act smart but my brain is ready to go to sleeeeeeeeeeep cuz I’m bored

Answer:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

3 steps (and I'm assuming this is a fraction being divided by a fraction:

Step 1: Identify the fractions being divided and multiply by its reciprocal of the denominator.

Step 2: Multiply the fractions

Step 3: Simplify

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant) #POG2020

please please help me

Answers

Answer:

what are you doing

Step-by-step explanation:

Let a(x) be the amount of money remaining on Hillary's gift card after purchasing x apps on her phone.



Since a(12) = (38, 15,35, 65) Hillary will have
(35,15,38,12) dollars remaining on her card after purchasing
(12,15,35,38) apps.

Answers

Answer:

she purchased 12 apps costs 12 *1.25 = 15 . So , she spent 15 ... Since a(12) = 35, Hillary will have 35 dollars remaining on her card after purchasing 12 apps.

Step-by-step explanation:

hopefully this helps

Answer:

35, 35, & 12.

Step-by-step explanation:

i did the test and i got it right :D

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