Answer:
Each one of the ten people has to shake hands with all the $20$ other people they don’t know. So $10\cdot20 = 200$. From there, we calculate how many handshakes occurred between the people who don’t know each other. This is simply counting how many ways to choose two people to shake hands from $10$, or $\binom{10}{2} = 45$. Thus the answer is $200 + 45 = \boxed{\textbf{(B)}\ 245}$.
Step-by-step explanation:
Answer:
your anwser would be 10 handshakes please mark brainliest i need it bad
Step-by-step explanation:
Calculate in square units the area of the shaded region bounded by the line
[tex] \frac{x}{4} + \frac{y}{5} = 1 \\ [/tex]
x/4 + y/5 = 1
, y = 0 and x = 0.
Please include the graph.
9514 1404 393
Answer:
10 square units
Step-by-step explanation:
The given equation is in "intercept form." This lets you see immediately the x-intercept is 4, and the y-intercept is 5. This makes the area be that of a right triangle with base 4 and height 5:
A = 1/2bh = 1/2(4)(5) = 10 . . . . square units
(02.03)
The ratio of the number of cupcakes to the number of pastries in a box is 7:2 Which
table shows the possible amounts of cupcakes and pastries in a box, given the ratio?
(2 points)
Answer:
It's the one under the one you have selected.
Step-by-step explanation:
7:2
14:4
28:8
56:16
Divide the first number by 7 then multiply it by 2.
Example: 56/7=8, 8*2=16 so it's correct.
Answer:
could be d
Step-by-step explanation:
Complete the equation to calculate the cost of the portable speaker, including sales tax.
$53
=
% of $50
Answer: The answer to this math question about completing the equation in order to calculate the cost of the portable speaker, including the sales tax is $94.34.
Step-by-step explanation: I don't have any step-by-step explanation, I'm sorry about that, but anyway, I hope that my given short answer is very helpful to your own math question about completing the equation in order to calculate the cost of the portable speaker, including the sales tax, please mark me as Brainliest, take care, always be safe, and have a great rest of the day! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
Your mom bought Taylor swift concert tickets for your birthday for $119.95 per person. She was able to use a discount code for 20%. If you, your friend and your mom are going to the concert, how much money did your mom spend on all three tickets
Answer:
$287.88
Step-by-step explanation:
Multiply 119.95 by 3.
You get 359.85
Multiply that by 80% or 0.8
The answer is 287.88
You mowed 2.25 yards in 1.5 hours. How many yards did you mow in 1 hour?
Answer:
1.5
Step-by-step explanation:
to find one hour you divide both answers by 1.5 giving you one hour and 1.5
1.5 yards did you mow in 1 hour when, You mowed 2.25 yards in 1.5 hours.
What is division?Division is the process of splitting a number or an amount into equal parts.
Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
You mowed 2.25 yards in 1.5 hours.
in 1 hours I mowed = 2.25/1.5
=1.5
Hence, 1.5 yards did you mow in 1 hour.
To learn more on division click:
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#SPJ2
2 |a| - ab ;if a = -7 and b = 3
Answer:
35
Step-by-step explanation:
absoulute value of a=7
so 2x7=14
ab=-7x3= -21
14- (-21)= 35
Each centerpiece has 17 flowers she has 430 for the project
Answer:
What even is this question?
this years cornells took one more than three times as many field trips as last you class this year cornells class took a total 7 trips how many field trips did his class took last year
wus 9 + 10 equal please help wus 9 = 10
Answer:
19
Step-by-step explanation:
it is 19
yes
wait no its 100000000000
I big brain UwU
Answer:
Step-by-step explanation:its 21
How to do this, thank you
Answer:
[tex]2^1^5[/tex]
Step-by-step explanation:
Power rule: you multiply the exponent.
Think of it this way: [tex]X ^3 = X \times X \times X[/tex]. In this case, [tex]X = 2^5[/tex]
At this point our original number is [tex]2^5 \times 2^5 \times 2^5 = 2\times2\times2... \times 2[/tex] with 15 2s
Which is, by definition, [tex]2^1^5[/tex]
-0.75___-3/4
which one is greater
[tex]\huge\text{\bf Hey there!}[/tex]
[tex]\huge\text{GUIDE} \ \boxed{\downarrow}\\\large\boxed{\mathsf{>: is \ \bf greater \ than }}\\\\\large\boxed{\mathsf{<: is \bf \ less\ than}}\\\\\large\boxed{\mathsf{\geq: is \ \bf greater\ than\ or\ equal\ to}}\\\\\large\boxed{\mathsf{\leq: is\ \bf less\ than\ or\ equal\ to}}\\\\\large\boxed{\mathsf{=: is \ \bf equal \ to}}[/tex]
[tex]\huge\text{GUIDE \#2}\ \boxed{\downarrow}\\\large\text{When you are working with greater than, you're basically shows}\\\large\text{when a number is BIGGER than the other number.}\\\\\large\text{When you are working with less than you are finding the opposite}\\\large\text{of greater than. (it shows when a number is SMALLER than the}\\\large\text{number.)}[/tex]
[tex]\\\large\text{When you are working with greater than or equal to, you are }\\\large\text{basically finding out if the number is greater or equal to the other }\\\large\text{number.}\\\\\large\text{When you are working with less than or equal to you are trying to}\\\large\text{figure out if your number is less than or equal to the other}\\\large\text{number.}[/tex]
[tex]\huge\text{ANSWERING YOUR GIVEN QUESTION}\ \boxed{\downarrow}[/tex]
[tex]\large\boxed{\rm{-0.75 \ ? \ -\dfrac{3}{4}}}[/tex]
[tex]\large\text{I'm going to make this easier to solve for you. I will convert the}\\\large\text{fraction }(\rm{-\dfrac{3}{4}})\large\text{ into a decimal. To do so, you have to DIVIDE the}\\\large\text{numerator (the number on TOP) from the denominator (the}\\\large\text{BOTTOM number)}[/tex]
[tex]\large\text{REMEMBER }\textbf{!}\\\large\text{Negatives are BELOW zero. (including decimals \& fractions).}\\\\\large\text{Positives are ABOVE zero}[/tex]
[tex]\large\boxed{{\mathsf{- \dfrac{3}{4}}}}\\\\\\\large\boxed{\mathsf{\rightarrow - 3\div 4}}\\\\\\\large\boxed{\rightarrow\mathsf{-0.75}}[/tex]
[tex]\large\text{Therefore, -0.75 and }\rm{-\dfrac{3}{4}}\large\text{ are equivalent to each other}[/tex]
[tex]\huge\boxed{\text{Therefore, your answer is: }}\ \huge\boxed{\mathsf{-0.75 \bold{\ =} -\dfrac{3}{4}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Answer:
The number farthest to the right is the greater number.
Step-by-step explanation:
-18 = 3 (-z + 6) + 2z
Answer:
z = 36
Step-by-step explanation:
1) Distribute
-18 = -3z + 18 + 2z
2) Combine like terms
-18 = -z + 18
3) Subtract 18 from both sides of the equation
-18 - 18 = -z + 18 - 18
4) Simplify
a. Subtract the numbers
-36 = -z + 18 - 18
b. Subtract the numbers
-36 = z
5) Divide both sides of the equation by the same term
-36/ - 1 = -z/-1
6) Simplify
a. Divide the numbers
36 = -z/-1
b. Cancel terms that are in both the numerator and denominator
36 = z
c. Move the variable to the left
z = 36
Brianna is shopping for a new cell phone provider. in her city there are three providers: Company a company b company c. cell phone radio towers broadcast a cell phone signal in a circular pattern. The table below shows the location of the cell phone towers for the three companies as well as the coverage radius.
The perimeter of the elliptical table is given by the path traced with the
string attached to the foci of the ellipse.
The distance between the two thumbtacks is 2·√(5)Reasons:
The shape of the table top = An ellipse
The dimensions of the plywood = 4 foot by 6 foot
Required:
The distance between the thumbtacks of the largest possible ellipse
Solution:
The major axis of the largest possible axis = 6 foot
The minor axis of the ellipse = 4 foot
[tex]The \ semi \ major \ axis, \ a = \dfrac{6}{2} = 3[/tex]
[tex]The \ semi \ minor \ axis, \ b = \dfrac{4}{2} = 2[/tex]
Which gives;
The focus, c² = a² - b²
Therefore;
c² = 3² - 2² = 5
c = √(5)
The distance between the two thumbtacks = c - (-c) = c + c = 2·c
Therefore;
The distance between the two thumbtacks = 2·√(5)
Learn more here:
https://brainly.com/question/18020167
A jar contains 0.25 liter of apple juice and 0.30 liter of grape juice. Melissa poured 0.75 liter of pineapple juice into the jar. She then drank 0.20 liter of the mixture. Part A: Write an expression to represent the total amount of juice left in the jar. (5 points) Part B: Simplify the expression and identify which property is used in each step. (5 points)
Answer:
Part A: Total amount of juice left = 0.25 + 0.30 + 0.75 - 0.20
what is important about math
Answer: "Math helps us think analytically and have better reasoning abilities." "Analytical thinking refers to the ability to think critically about the world around us." "Analytical and reasoning skills are important because they help us solve problems and look for solutions."
Step-by-step explanation: Hope this helps :)
Rena earns $665 a week, and she works 5 days a week. What is her daily
wage?
Answer:
133
Step-by-step explanation:
Answer:
133
Step-by-step explanation:
665/5 = 133
latasha had a piece of leather string that was 18 inches long that she wants to use to make wrist bands if each wrist needed to be 6 inches long how many wrist bands can she make
Answer:
the answer is 3
Step-by-step explanation:
take 18 and divide it by 6 and you get 3
Please need help with this question
Answer:
The answer is B
Step-by-step explanation:Because as u see it says run
170 students or 85% of the students went to attend college what are the total number of students?
Answer:
200
Step-by-step explanation:
I think sorry if I am wrong
A company has 24 employees. Each employee volunteers to bring 1 item to the local school fundraiser.
One-fourth of the employees bring pencils.
One-third of the employees bring paper.
The rest of the employees bring notebooks.
How many employees bring notebooks?
Answer:
6 employees bring pencils
8 employees brings paper
6+8=14
Company:24 employees- 14 employees who brong paper and pencils.=10 so 10 employees brings notebooks.
Step-by-step explanation:
Answer:
6 employees bring pencils
8 employees bring paper
10 employees bring notebooks
Step-by-step explanation:
1/4= 6
1/3= 8
the rest = 10
Which is equivalent to 4√3
will mark brainlist if right
Answer:
The result can be shown in multiple forms.
Exact Form: 4√3 = √48
Step-by-step explanation:
Please help quick! Thanks!
Answer:
69.9 (nice)
Step-by-step explanation:
To solve this, use the order of operations: PEMDAS (Parenthasis, exponents, Multiplication/Division, Addition/subtraction) In order.
1. Solve in the parenthasis, (2+3³). 3³ = 27, so 2+27 is 29. Plug in 29 to the equation: 5³-29×1.9
2. Next is exponents. 5³ has an exponent, which equals 125. Now you plug that into the equation to be 125-29×1.9
3. Now comes multiplication/division. In this case, it's multiplication. -29×1.9 . This equals -55.1, and you once again plug this into the equation to simplify which gives you 125 - 55.1
4. Last in the order of PEMDAS is addition/subtraction. The final simplification of the equation is 125 - 55.1 which is subtraction and this equals 69.9 (nice)
So in conclusion, your answer is 69.9 (nice)
Which of the following is a proportion?
I don’t understand this question. please help
Answer:
D. As the Radius of the can get larger and larger, the label gets further and further from zero (0)
Hope this helps, have a nice day/night! :D
1.The sum of two numbers is 60. The larger number is 8 more than twice the smaller number. What are the two number?
2.How many gallons of 10% alcohol solution and 70% alcohol solution must be mixed to get 6 gallons 40% alcohol solution?
Answer:
(1)
x = 128/3
y = 52/3
(2)
x=3
Step-by-step explanation:
(1)
x+y=60 => 3y=52 => y=52/3 => x=128/3
x=2y+8
(2)
M1V1 + M2V2 = MV
x × 10 + x × 70 = 6 × 40
80x = 240
x = 3
four spheres of radius 6cm fit into a cylinder with a height of 12cm. calculate the volume inside the cylinder that is empty. leave your answer in terms of pi.
Answer:
V = 432pi cm^3
Step-by-step explanation:
Pi x r^2 x h
Pi x 6^2 x 12 cm = 432 pi cm^3
The owner of a health club decides to reduce the $35 membership fee by $5. What is the approximate percent decrease in the fee?
The percent decrease is approximately 0.14%.
The percent decrease is approximately 0.85%.
The percent decrease is approximately 14%.
The percent decrease is approximately 85%.
Answer:
The percentage of decrease is approximately 0.14%.
Step-by-step explanation:
35 - 5 = 30
What percentage is 5 of 35 (x/100 = is/of)
x/100 = 5/35 (cross multiply)
(5*100)/35 = 14.29%
it's C
hoped this helped you with your problems
ILL GIVE BRAINLIEST I NEED STEP BY STEP EXPLANATION PLZ ITS PAST DUE
Answer:
Answer is given in the attachment
hope it's helpful!!
We are given a sequence of five non-zero numbers, where the sum of each term and its neighboring terms is 15 or 25. Find the sum of all the terms in the sequence.
We have a sequence that meets the given criteria, and with that information, we want to get the sum of all the terms in the sequence.
We will see that the sum tends to infinity.
So we have 5 terms;
A, B, C, D, E.
We know that the sum of each term and its neighboring terms is 15 or 25.
then:
A + B + C = 15 or 25B + C + D = 15 or 25C + D + E = 15 or 25Now, we want to find the sum of all the terms in the sequence (not only the 5 given).
Then let's assume we write the sum of infinite terms as:
[tex]a_1 + a_2 + a_3 + a_4 + a_5 + a_6 + ...[/tex]
Now we group that sum in pairs of 3 consecutive terms, so we get:
[tex](a_1 + a_2 + a_3) + (a_4 + a_5 + a_6) + ...[/tex]
So we will have a sum of infinite of these, and each one of these is equal to 15 or 25 (both positive numbers). So when we sum that infinite times (even if we always have the smaller number, 15) the sum will tend to be infinite.
Then we have:
[tex](a_1 + a_2 + a_3) + (a_4 + a_5 + a_6) + ... \to \infty[/tex]
If you want to learn more, you can read:
https://brainly.com/question/21885715
what is 1/3 divided by 1/9
Answer:
3
Step-by-step explanation:
1/3 x (9/1) = 3
