How many numbers must be selected from the set $\{1, 3, 5, 7, 9, 11, 13, 15\}$ to guarantee that at least one pair of these numbers add up to 16?

Answers

Answer 1
All of them!
1+15=16
3+13=16
5+11=16
7+9= 16

Related Questions

i need help on this one :)

Answers

3x + 60 ° = 180
3x + 60 (-60) = 180 - 60
3x = 120
3x/3 = 120/3
x = 40


Check:
3x + 60 = 180
3(40) + 60 = 180
120 + 60 = 180




The answer is: x = 40

which relation defined by mapping diagram is a function

Answers

Hello! A diagram is a function, when the domain of a number only has one range. By looking at this graph, A is eliminated, because 1 has more than one range. Exact same thing with C. The only diagram that shows a function is B, because no domain has more than one range. All of the numbers have one range, and that diagram makes a function. The answer is B.

a triangle has an area of 54 m2 and a height of 9m how long is the base of the triangle entered your answer in the box

Answers

Answer:
base of the triangle = 12 m

Explanation:
Area of the triangle = 1/2 * base * height
We are given that:
area = 54 m^2
height = 9 m

Substitute in the equation to get the base as follows:
Area of the triangle = 1/2 * base * height
54 = 1/2 * base * 9
108 = 9*base
base = 12 m

Hope this helps :)
The first thing you should know to solve this problem is that the definition of the area of the triangle is:
 A =(1/2)* b * h
 Where,
 b: base
 h: height.
 Clearing the base we have:
 b = 2*A / h
 Substituting the values
 b = 2*(54) / (9) = 12 m
 Answer:
 The base of the triangle is 12m long

Explain the rules for multiplication and division to convert units. How do you know when to multiply and when to divide to convert untis of measurement?

Answers

Well, units divide and multiply just like numbers. That's why Area is in units of  distance squared (cm × cm = cm²) and volume is cubic distance (m × m × m = m³).

Likewise other mathematical operations can be performed on them, including division where they can cancel out of the equation.

For instance, a rate, speed, slope or conversion factor is usually one unit divided by another unit. Like so...

speed = 5 meters per second
[tex]= \frac{5m}{1sec} [/tex]

If you are given a distance traveled, let's say 100 meters and asked to solve for time it takes to get there. You would divide by the speed so that meters cancel leaving only time.

** Of course to divide by a fraction is to flip and multiply so really you're just multiplying by it, making sure the same units are diagonal and cancel out like so:

[tex]100 m * \frac{1sec}{5m} = 20 sec[/tex]


Hope this helps!

2 to the x power equals 512

Answers

2 to the 8th power = 512
Please make brainliest! ☺
The answer is 22.6 i believe, let me know if i got it right 

A vegetable farmer fills 2/3 of a wooden crate with 5/7 pound of tomatoes. How many pounds of tomatoes can fit into one crate?

Answers

1 1/14 i think but not sure 








5/7 pounds fill 2/3 crate

x= number of pounds of tomatoes that will fit in one crate

x=5/7 ÷ 2/3

multiply by the reciprocal
x=5/7 * 3/2
x=(5*3)/(7*2)
x=15/14

change to mixed fraction
x=1 1/14 or 1.07 pounds of tomatoes

1 1/14 pounds of tomatoes will fit in one crate.

Hope this helps! :)

which equation is the inverse of y=100-x2

Answers

Answer:

Inverse of y = [tex]f^{-1}(x)[/tex] = [tex]\sqrt{100 -x}[/tex].

Step-by-step explanation:

Given  : f(x) = y = 100 - x²

To find : Find inverse.

Solution : We have given that :

f(x) = y = 100 - x²

Step1) : Replace every x with a y and replace every y with an x .

x = 100 - y².

Step 2): Solve for y

On subtracting 100 from both sides

x - 100 = -y²

On multiplying both side by -1

100 -x = y²

Taking square root both sides and switching sides

y = ± [tex]\sqrt{100-x}[/tex].

Step3 ) : Replace y with [tex]f^{-1}(x)[/tex].

[tex]f^{-1}(x)[/tex] = ± [tex]\sqrt{100-x}[/tex].

Therefore, inverse of y = [tex]f^{-1}(x)[/tex] = ± [tex]\sqrt{100-x}[/tex].

Answer:

A on edge

Step-by-step explanation:

"how few colors can be used so that each room is painted a color so in which no two adjacent rooms are the same color?"

Answers

We can see here that to guarantee that no two adjacent rooms are the same color, a minimum of four colors is generally needed.

To determine the minimum number of colors needed to paint each room in a way that no two adjacent rooms have the same color, we can use a coloring algorithm known as the "Four Color Theorem." According to this theorem, it is possible to color any map on a plane using at most four colors, ensuring that no two adjacent regions have the same color.

Applying this concept to the rooms, we can conclude that a minimum of four colors is needed to satisfy the given condition. By using these four colors, we can ensure that no two adjacent rooms share the same color.

Which of the following are linear factors of px=x^3-2x^2-5x+6

Answers

Asked and answered elsewhere.
https://brainly.com/question/8859814

which of the following best describes this random sample

Answers

the answer is A  because you can only know that they had it not that its used for certain things
The five paintings sampled

A Broadway musical was attended by a total of 2,838 people, including men, women, and children. The number of women who attended the event was 5 more than 3 times the number of children, while the number of men was 3 less than 4 times the number of women. Write an equation to model this situation. Then, use the equation to find the number of men, women, and children who attended the musical.

Answers

Total= 2838
x= # of children
3x+5= # of women
4(3x+5)-3= # of men

x + (3x+5) + 4(3x+5)-3= 2838
multiply 4 by 3x+5 first

x + (3x+5) + (4*3x) + (4*5) - 3= 2838
combine like terms

4x + 5 + 12x + 20 - 3= 2838
16x + 22= 2838
subtract 22 from both sides

16x= 2816
divide both sides by 16

x= 176

ANSWER:
# Children= x= 176
# Women= 3x+5= 3(176)+5= 533
# Men= 4(3x+5)-3=4(3(176)+5)-3= 2129

CHECK:
#children + #women + #men= 2838
176 + 533 + 2129= 2838
2838= 2838

Hope this helps! :)

There are fewer than 8 gallons of gas in the tank how do I write an inequality for that

Answers

g<8 g as a variable for gallons

Consider the equation 5x-2y=3. If possible, find a second linear equation to create a system of equations that has: Exactly one solution Exactly two solutions No solutions Infinitely many solutions

Answers

a) One solution: 5x +2y = 0 . . . . (any line with a different slope)

b) Two solutions: not possible

c) No solutions: 5x -2y = 0 . . . . (any different line with the same slope)

d) Infinitely many solutions: 10x -4y = 6 . . . . (any other equation for the same line)

Answer with explanation:

1.⇒ The given equation is

  5x-2y=3

For one solution ,you should write linear equation in such a way

ax+by=c, such that

  [tex]\frac{5}{a}\neq \frac{-2}{b}\neq \frac{3}{c}[/tex]

So, the linear equation will be

→3x+4y=8

You can write many more by yourself.

2.⇒Exactly two solutions

The two lines intersect at only one point.So,there are no such lines which has two point of Intersection.

3.⇒No solutions

It means the two lines will never intersect.

 For no solution ,you should write equation of line in such a way

ax+by=c, such that

  [tex]\frac{5}{a}=\frac{-2}{b}\neq \frac{3}{c}[/tex]

So, the linear equation will be

→10x -4y=15

You can write many more by yourself.

4.⇒Infinitely many solutions

For Infinite number of solution ,you should write linear equation in such a way

ax+by=c, such that

  [tex]\frac{5}{a}=\frac{-2}{b}=\frac{3}{c}[/tex]

→10x-4y=6

Which is a correct way of evaluating the expression 25x + 40x for x = 4?

Answers

The Order of Operations would tell you
1. substitute the value of the variable
2. evaluate multiplications
3. evaluate the sum

25*4 +40*4
100 +160
260


Personally, I would combine terms and rewrite it to be
.. (25 +40)x
.. 65x
.. 65*4
.. 65*2*2
.. 130*2
.. 260

_____
The Order of Operations is the rule book for evaluating expressions. However, we know that multiplication and addition are associative and commutative, and that the distributive property applies.

If you are evaluating expressions in a computer program, there are methods for assuring minimum round-off and truncation errors that have little to do with any of the above, but everything to do with how numbers are represented in a computer and the way compilers work.

Shoe store A is having a sale in which every pair of shoes is 40% off the regular price.
Shoe store B is having a sale in which $40 is deducted from the regular price.

Richard is comparing the price of the same pair of shoes in both shoes in both stores.In both stores, the shoes normally sell for $120. Which store has the better bargain?

Answers

Store A because 40% off of 120$ will equal 72.
Store a where there is the 40% off, unless he's buying something less that $100 the percentage will always be the better deal than a solid amount off.

Five hummingbirds drink 7.5 ounces of sugar water a day. How much sugar water is needed for 14 hummingbirds?

Answers

First, divide 7.5 by 5 to find out how much sugar water is needed for each bird. 
Each bird needs 1.5 ounces per day. 
Then just multiply that by 14 to get 15.5 ounces of sugar water.
Hope this helps!
Since 5 hummingbirds drink 7.5 ounces, we have to figure out how many ounces goes to only one. 

You should divide 7.5 by 5, and that equals 1.5

Then you're going to multiply 1.5 by 14 because there are 14 hummingbirds

1.5 * 14 = 21

21 ounces of sugar water is needed for 14 hummingbirds.

Suppose that the polynomial function A(x) = - 0.0082x2 + 0.06x approximates a person's blood-alcohol level x hours after drinking 5 ounces of 80-proof whiskey. What is the person's blood-alcohol level after 3 hours?

Answers

Given that the blood-acohol level at time x is given by A(x)=-0.0082x²+0.06x. The blood-alcohol after 3 hours for a person who has drunk 5 ounces pf 80-proof whiskey will be:
A(3)=-0.0082(3)²+0.06(3)
A(3)=-0.0738+0.18
A(3)=0.1062
the amount of blood-alcohol after 3 hours will be 0.1062

in 3/4 identify the role of 3. Then explain how to read tbis number

Answers

The role of 3 would be the numerator.
But how to read the number I’m not sure.

Answer:

The 3 is the numerator, To read the number is "three-fourths"

Step-by-step explanation:

I hope this helps!

A chef uses 3 3/4 pounds of semolina flour and 1 5/8 pounds whole wheat flour for each batch of pasta she makes. One week she uses a total of 86 pounds of flour.
Write an equation to solve for b, the number of batches of pasta the chef makes during the week.
How many batches of pasta does she make? Show your work.

Answers

one batch = 3 3/4 + 1 5/8
one batch = 3 6/8 + 1 5/8
one batch = 4 11/8
one batch = 5 3/8 pound of flour

One week = 86 pound 
86 ÷  5 3/8  = 86 ÷   43/8
86 ÷  5 3/8  = 86 x   8/43
86 ÷  5 3/8  =16

She makes 16 batches of pasta

To find the number of batches of pasta, convert the amount of flour per batch to an improper fraction, create an equation based on the total flour used, and solve for the number of batches, which is 16.

To solve for b, the number of batches of pasta the chef makes during the week using a total of 86 pounds of flour:

First, convert the amounts of each flour from mixed numbers to improper fractions:

1 5/8 pounds = 13/8 pounds

Now add the two amounts together to get the total flour used per batch:

(15/4) + (13/8) = 30/8 + 13/8 = 43/8 pounds per batch

The equation to solve for b is:

(43/8) * b = 86

To find b:

b = 86 / (43/8)

Multiply both sides by the reciprocal of 43/8:

b = 86 * (8/43)

b = (86 * 8) / 43

Calculate the value of b:

b = 688 / 43

b = 16

A school sold small and large boxes of fruit as a fundraiser. One student sold 5 small boxes and 13 large boxes for $232. Another student sold 12 small boxes and 7 large boxes for $218. Let x represent the price of a small box and y represent the price of a large box. Solve the system to determine the price of each size box of fruit.


A The price of a small box of fruit is $10 and the price of a large box of fruit is $14.
B The price of a small box of fruit is $8 and the price of a large box of fruit is $14.
C The price of a small box of fruit is $10 and the price of a large box of fruit is $16.
D The price of a small box of fruit is $14 and the price of a large box of fruit is $16.

Answers

The answer is A.
5(10)+13(14)=232
  50  +   182  =232

12(10)+7(14)=218
  120  +  98   =218

The answer is  y=14 and x= 10

What is the solution to a linear equation?

The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations. In other words, the solution set of the system of linear equations is the set of all possible values to the variables that satisfies the given linear equation.

Given here:  One student sold 5 small boxes and 13 large boxes for $232. Another student sold 12 small boxes and 7 large boxes for $218.

Then we have 5x+13y=232

                         12x+7y=218

Solving these two equations here we get y=14 and x= 10

Hence, The answer is  y=14 and x= 10

Learn more about linear equations here:

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Which of the following can only be used after you prove triangles are congruent? Alternate Interior Angles Reflexive Substitution CPCTC

Answers

Hello!

CPCTC is your answer. CPCTC stands for Congruent Parts of Congruent Triangles are Congruent--it builds on the fact that the triangles are congruent, therefore this must be proven before using CPCTC.

Hope this helps!

Final answer:

CPCTC stands for Corresponding Parts of Congruent Triangles are Congruent and can only be used after proving triangles are congruent. It helps in confirming that corresponding parts of congruent triangles are congruent.

Explanation:

CPCTC stands for Corresponding Parts of Congruent Triangles are Congruent. It can only be used after you prove triangles are congruent. When two triangles are proven congruent, CPCTC allows you to show that corresponding parts like angles and sides are congruent as well.

A swimmer swam 49 kilometers in d days. what is the value of d if the swimmer swam an average of 3.2 kilometers daily?

Answers

the answer is the value of d is 15 days

Because d= 49/ 3.2= 15 days 

9ax+9b-6=21

based on the equation above what is the value of ax+b

Answers

We have [tex]9ax+9b-6=21[/tex].

We add 6 to both sides. [tex]9ax+9b=27[/tex].

Now, to solve for [tex]ax+b[/tex], we factor out and divide by a 9 to get

[tex]9(ax+b)=27 \\ ax+b=3[/tex].

The value of equation ax + b is 3.

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

To find the value of ax + b, we need to isolate that expression on one side of the equation.

Starting with:

9ax + 9b - 6 = 21

We can add 6 to both sides:

9ax + 9b = 27

Then, we can factor out 9 from the left-hand side:

9(ax + b) = 27

Dividing both sides by 9, we get:

ax + b = 3

Therefore,

The value of equation ax + b is 3.

Learn more about equations here:

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If changes are made to a signature while using version 5.x signature files, are they visible in the router running the configuration?

Answers

I think that the changes will not be visible in the router running the configuration. This is because they are not part of the router configuration. The version 5.x signature is more advantageous it has an additional signature risk rating feature and it supports encrypted signature parameters. 

William runs 5 meters in 20 steps. How many kilometers will he run if he takes 1,000 steps ?

Answers

This means 5 meters/20 steps = x/1,000 steps. 20 times 50 is 1,000, so 5 times 50 is 250 meters. 5/20 can be also reduced to 1/4 = x/1000. Use cross products rule to get 4x = 1,000. Divided both sides by 4 to get x = 250 meters.
Go help me anwser my question

what is the answer to m-1/6-4m+5/6

Answers

Hey there! :D

m-1/6-4m+5/6

m-4m=-3m

-1/6+5/6= 4/6

-3m+4/6 <== simplified expression

I hope this helps!
~kaikers

Shondra found large candles on sale at her favorite store. She has a large family and many friends, so she bought as many of the candles she could fit in her trunk to give as gifts. Her trunk is 2 feet deep, 4 feet wide, and 3 feet long. If each candle comes in a cube box with 1 foot edges, how many candles will fit in her trunk? A) 9 candles B) 10 candles C) 14 candles D) 24 candles

Answers

Pretty sure 24. 3 x 4 = 12 x 2 = 24. So D!

If the original 24 m edge length x of a cube decreases at the rate 5m/min, when x=3 at what rate does the cube's surface area change

Answers

let s be the surface area and t= time in minutes
s=6x²
d/dt(s)=d/dt(6x²)
ds/dt=12x(dx/dt)
given that x=3, then
ds/dt=12(3)(-5)
ds/dt=-180m²/min

b] Let the volume be v
v=x³
d/dt(v)=d/dt(x³)
dv/dt=3x²(dx/dt)
when x=3, then
dv/dt=3(3²)(-5)
dv/dt=-135m³/min
Final answer:

The change in the cube's surface area is -180 m^2/min when the edge length is 3 m. This is found by differentiating the surface area with respect to time and substituting the given values.

Explanation:

The subject of the question is related to rates of change in the context of the geometry of a cube. To address this problem, we use the formula for a cube's surface area, which is given by A = 6x^2, where x represents the length of an edge. If x changes with respect to time, we denote this change as dx/dt, which is given as -5m/min. You want to find how quickly the surface area, A, changes when x = 3.

First, let us differentiate the surface area A with respect to time t. By the chain rule of differentiation, dA/dt = dA/dx * dx/dt. Given A = 6x^2, dA/dx = 12x. substituting x=3 and dx/dt=-5, we find that dA/dt = 12*3*-5, which equals -180m^2/min.

Therefore, the change in the cube's surface area is -180 m^2/min when the edge length is 3 m.

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Which expression is equivalent to 10b - 25? 10(b - 15) 5(b - 5) 5(5b - 20) 5(2b - 5)

Answers

10b - 25 = 5(2b - 5)

answer
5(2b - 5)

a bike path is 6 3/4 miles long. what whole number is closest to 6 3/4

Answers

22 will be the whole number
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