how many different 2-person conversations would happen at a party of 30 people

Answers

Answer 1
15 because simple division 30 divided by 2 is 15 only 15 can happen

Related Questions

through (1, 2), slope = 7
Write the equation of a line in slope-intercept and standard form.Given 1 point and a slope

Answers

Answer:

The equation of line is as follows:

Slope-intercept form: [tex]y = 7x-5[/tex]

Standard Form: [tex]-7x+y = -5[/tex]

Step-by-step explanation:

Given that

Slope of line: 7

Point : (1,2)

Slope-intercept form of equation of line is given by:

[tex]y = mx+b[/tex]

Here m is the slope and b is y-intercept.

Putting the value of slope

[tex]y = 7x+b[/tex]

To find the value of b, we have to put the point in the equation

[tex]2 = 7(1) +b\\2 = 7+b\\2-7 = b\\b = -5[/tex]

So the equation will be:

[tex]y=7x-5[/tex]

The standard form of equation of line is:

[tex]Ax+By = C[/tex]

To convert the equation in standard form, subtracting 7x from both sides

[tex]y-7x = 7x-5-7x\\-7x+y = -5[/tex]

Hence, the equation of line is as follows:

Slope-intercept form: [tex]y = 7x-5[/tex]

Standard Form: [tex]-7x+y = -5[/tex]

The equation of a line in slope-intercept and standard form through (1, 2), slope = 7 is  7x - y = 5.

To find the equation of a line in slope-intercept and standard form.

First, we can write the equation in point-slope form. The point-slope formula states:

(y − y₁) = m (x − x₁)

Where m is the slope and

(x1, y1) is a point the line passes through.

Substituting the values from the problem gives:

(y − 2) = 7(x − 1)

Now, we need to convert to standard form.

The standard form of a linear equation is:

Ax + By = C

where, if at all possible,

A, B, and C are integers, and A is non-negative, and, A, B, and C have no common factors other than 1

We convert as follows:

y − 2 = (7 × x) − (7 × 1)

y − 2 = 7x − 7

−7x + y − 2  = − 7

Adding 2 in both side.

−7x + y − 2 + 2 = − 7 +2

-7x + y = -5

7x - y = 5

Therefore,  the equation of a line in slope-intercept and standard form is 7x - y = 5.

Learn more about equation of a line here:

https://brainly.com/question/23602331

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Can someone please help me?

Answers

Answer:

Option 2

Step-by-step explanation:

[tex]2 \frac{2}{13} + \frac{15}{13} =[/tex] [tex]2 \frac{2}{13} + 1 \frac{2}{13} = 3 \frac{4}{13}[/tex]

Answer: The answer is option 2. 3 4/13

Step-by-step explanation:

2 2/13 + 15/13 =  2 17/13

17 fits into 13 one time and you're left with 4/13 as a remainder.

Since 17 was able to fit into 13 at least once, you get another whole number making your already existing whole number of 2 into 3.

Thus your answer is 3 4/13. I hope this was a helpful explanation! :)

1. How are polynomials added and subtracted?
2. Write the expression 81^2-80^2 using a difference of squares pattern. What is the solution?
3. What is the common denominator of (ab)/c + (xy)/z?

Answers

Answer:

3: cz

Step-by-step explanation:

Answer:

1.) Polynomials are added or subtracted by changing the signs (when needed) and adding/subtracting like terms

2.)161

3.)cz

Step-by-step explanation:

2.) 81^2-80^2

  (81+80)(81-80)

    161x1

      161

3.)ab/c + xy/z = abxy/cz thus, the common denominator is cz

Hope this helps, hope your call goes well :)

Best Buy is having a sale and all of their iPad’s are 20% off. The regular price for an iPad is $450.

Part I:
How much money will you save buying the iPad on sale?


Part II:
What is the final cost of the iPad when it is on sale?

Answers

part 1. is 90 dollars
part 2. is 360 dollars
Part 1: You save 360 dollars 450 x .20 equals 90 450-90=360 dollars
Part 2: 90 dollars is the amount you pay

Rahul has a farm he wishes to fence. The farm is the pentagon ABCDE, shown below. He knows that ABCD is a 140 m by 150 m rectangle, as shown below. He also knows that E is 50 m from the side AB and 30 m from the side BC. Determine the length of AE, the length of DE, and the perimeter of pentagon ABCDE.

Answers

Answer:

How do you except me to know

Step-by-step explanation:

Bruh I came here to find the Awnser not to actually work for it

The weights, in ounces, of three different packages of cookies are listed below. Which list shows these weights in order from least to greatest? A 7.25, 7 1 7 , 7.7 B 7 1 7 , 7.25, 7.7, C 7.25, 7.7, 7 1 7 , D 7 1 7 , 7.7, 7.25

Answers

Answer: C. 7.25, 7.7, 7 1 7

Step-by-step explanation:

From the question, we are given the weight , in ounces, of three different packages of cookies and we are told to arrange them in ascending order that is, from the least to the greatest.

The least of the numbers is 7.25. After then we have 7.7 and the greatest is 717. Therefore this can be arranged as:

7.25, 7.7, 7 1 7

Therefore, the correct option is C.


charges competition fees of $250 plus $75 per week for classes. What is the
total charge for 40 weeks?

Answers

Answer:

$3,250

Step-by-step explanation:

You take the initial fee of 250 then add 75x40

250x75(40)=$3250

Will give brainliest if I can.

Answers

Answer:

x=5

y=-5

Step-by-step explanation:

X=5
Y=-5
Step By Step

Mr Chin bought 3.8 kg of candy, nearest to
100g. What is the least amount of candy in the
bag to nearest kilogram.

Answers

To do this you need to find the lower bound
The lower bound is the minimum amount that would round up to the estimated value

3.8kg, measured to the nearest 100g
The degree of accuracy is to the nearest 100g
100/2 = 50g (0.05kg)

Lower bound 3.8 - 0.05 = 3.75kg

Therefore the least amount of candy you could have in the bag is 3.75kg

Which expression is equivalent to 6x6 + 12x + 5 ?

A.(2x+1)(3x+5)
B.(2x+5)(3x-1)
C.(2x-1)(3x-5
D.(2x-5)(3x-1)​

Answers

Answer:

Step-by-step explanation:

None of these are correct. Is the equation 6x^6+12x+5 correct?

Explain how to use the distributive property to find an expression that is equivalent to 20 + 16​

Answers

Answer:

What you need to do is to find a multiple of 20 and 16 in other words a number that can multiply into 20 and 16. You have 2 and you have 4. So now this is how it looks like.

Either:

4(5+4) Or

2(10+8)

Step-by-step explanation:

Mr. Howard and Ms. Egan enjoy running on the weekends. They both usually run at a steady pace and try to meet in the middle. They are 14 miles apart. Mr. Howard can run 3 miles in 30 minutes. Ms. Egan can run 4 miles in 30 minutes.

Answers

Given :

Distance between them, D = 14 miles .

Mr. Howard can run 3 miles in 30 minutes.

Ms. Egan can run 4 miles in 30 minutes.

To Find :

Time taken by them to meet.

Solution :

Mr Howard speed, [tex]v_H=\dfrac{3}{0.5}=6\ mph[/tex] .

Mr Egan speed, [tex]v_e=\dfrac{4}{0.5}=- 8\ mph[/tex] . [ Since they run in opposite direction ]

Their relative speed :

[tex]v=v_E-v_H\\\\v = 8-(-6) \ mph \\\\v = 14 \ mph[/tex]

Time taken by them to meet :

[tex]T = \dfrac{14}{14}\ hours\\\\T = 1 \ hours[/tex]

Hence, this is the required solution.

Write one digit on each side of 36 to make a four-digit multiple of 36. How many different solutions does this problem have?

Answers

9514 1404 393

Answer:

  3 solutions: 1368, 5364, 9360

Step-by-step explanation:

In order to be divisible by 36, the number must be divisible by 9 and by 4. The number will be divisible by 9 if the sum of its digits is divisible by 9. 36 already has a digit sum of 9, so the two added digits must sum to 9.

The number will be divisible by 4 if the least-significant digit is a multiple of 4. That is, it must be 0, 4, or 8. Then the corresponding most-significant digits must be 9, 5, or 1.

The three solutions are ...

  1368 = 38 · 36

  5364 = 149 · 36

  9360 = 260 · 36

Given d = 1/2 at^2, solve for a.

A) a = t^2/ 2d
B) a = 2d/t^2
C) a = d - 1/2 t^2
D) a = 1/2t^2 - d

Answers

Isolate the variable by dividing each side by factors that don't contain the variable.
The Answer is B
2d/t^2

-3y + 12 = -8x


anyone know how to do this. I need it in y=mx+b and Ax+By=C
slope intercept form and standard form​

Answers

Change -3y + 12 = -8x to the form y = mx + b

Subtract 12 on both sides

-3y = -8x - 12

Divide by -3 on both sides

y = 8/3 + 4


Change original equation to Ax + By = C

-3y + 12 = -8x

Switch -8x and 12

-3y + 8x = -12




(ps, I haven’t done this kind of math in a long time )

a car travels 15 miles in 15 minutes how many miles does it travel in 2 hours ​

Answers

Answer:

120 miles in 2 hour

Step-by-step explanation:

One hour has 4 times 15 minutes, so you need to do 15 miles x 4 and that time 2 because its 2 hours.

Please answer 2 question

Answers

Answer:

x= 23

Step-by-step explanation:

180 minus 3 is 87

3 times 23

87

What is the equation of the line with a y-intercept of -10 and a slope of 3?
A.y = -102 - 3
B.y=-10x +3
C.y= 3x - 10
D.y= 3a + 10

Answers

I am pretty sure it’s C

Answer:

c

Step-by-step explanation:

slope is 3 and y intercept is -10 so y=3-10

GEOMETRY
Can someone explain dilations to me?

Answers

okay so when a scale factor is given it just means multiply that number with the number given in the shape like for example if the shape is a triangle and it gives you 3 numbers and then number are 6, 9, and 12 you multiply the given scale factor which lets say would be 2 now you multiply those number and you will get 12, 18, and 24 now that is your new triangle and graph it on the graph !

1)50% of 60 2) 8 out of 80 is what percent?

Answers

Answer:)

1) 50% of 60 is 30

2) 8 out of 80 is 10%

You're welcome :)

Answer:1. 30

2. 10%

Step-by-step explanation:

7/15 into a decimal
WITH WORK
WILL GET BRAINLY

Answers

Answer:

0.46666666666...

Step-by-step explanation:

divide 7 by 15 :/

Answer:

.4666666666...

Step-by-step explanation:

7/15

to get 7/15 to a decimal you want to divide 7 by 15

7/15 = .466666...

In the equation, 3b+4=7, what is the 4

Answers

Answer:

constant

Step-by-step explanation:

3 is the coefficient, b is the variable, 4 and 7 are the constants.

Solve for x: 2x – y = (3/4)x + 6.

(a) (y + 6)/5,

(b) 4(y + 6)/5,

(c) (y + 6),

(d) 4(y - 6)/5.

Answers

Answer:

its b

Step-by-step explanation:

2x -y = (3x+24)/4

8x - 4y= 3x + 24

5x=4y+24

5x=4(y+6)

x=4(y+6)/5

The best bagel company bakes 1,872.they put a bakers dozen ,or 13 bagels, into each bag. How many bags do they fill

Answers

Answer:

144

Step-by-step explanation:

1872 divided into bags with 13 each is

1872/13= 144 bags to fill

SOMEONE PLEASE ANSWER IM BEGGING ILL GIVE BRAINLIEST!! I NEED FAST

Answers

Answer:

1. (3, -1) 2. (-1, 3) 3. (2, 0) 4. (1, 0)

Step-by-step explanation:

Sorry the graphs' numbers keep changing, but hope this helps!

I added a photo for this one plz help

Answers

Answer:

4/3

Step-by-step explanation:

ANSWER NOW TO GET BRAINLY!!!!!

Answers

Answer:

d

Step-by-step explanation:

cause  it is d o.49

Apack of batteries that contains nine batteries costs $20. Determine the cost per battery

Answers

The cost per battery will be around $2.22 per battery

Answer:

$2.22

Step-by-step explanation:

You divide $20 by 9

What’s the square root of 8 and 75 and 20 and 300 and 15

#not help asap

Answers

8: 2.82842712475
75: 8.66025403784
20: 4.472135955
300: 17.3205080757
15: 3.87298334621

help please :DDDD kinda confused

Answers

Answer:

7 to the 7th power

Step-by-step explanation:

To get your answer you add your two exponents together and that becomes your new exponent. Your base number stays the same..

The answer is 7 ⁷

Step-by-step explanation: 7 ⁴ is 343 and 7 ³ is 2401 so if you multiply those together it is

823,543. 7 ⁷ in total is 823,543

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