What is the solution to the inequality-2x-3y>9

Answer:

1.Tom

2.Sally

3.Bob

4.Jills

Answer: $7.50

Step-by-step explanation: 1.25(6)

Answer:

An irrational decimal is a decimal that cannot be written in fraction form

Ex: Pi or any decimal that keeps going and doesn't repeat

Step-by-step explanation:

I would give you more examples but they are all really long numbers and go on forever.

Answer:

Pi!

Step-by-step explanation:

I know it might sound silly but Pi and it's digits are part of the irrational decimal family! It's irrational because the digits of Pi seem like they never end, right? Hope this helped!

Answer: 2(C^3) or 2(C to the third power)

Step-by-step explanation: C^3 is the same thing a c+c+c

Hope this helps!

Answer:

2, 240

Step-by-step explanation:

In the table, the values should be

Year 1   725  

Year 2   579

Year 3   696

Since Year 4 sold 112% of the previous 3 years combined, we add 725+579+696=2000. We can find 112% by writing a proportion.

[tex]\frac{112}{100} =\frac{x}{2000}[/tex]

We solve through cross multiplication of numerator and denominator of the opposite fraction.

[tex]112(2000)=100(x)\\224000=100x\\2,240=x[/tex]

Answer:

a.-4

Step-by-step explanation:

I pictured it as a graph and since the slope is negative, the line goes down and to the right. Since the slope is -1/2, for every 2 you move horizontally, you move one vertically. You have to move two up and unless the y intercept is 0, when the line intercepts y, you have 0 as x. You move two up and 4 backwards so the x intercept is -4

Step-by-step explanation:

Firstly, set the x value as 0:

-0 + 2y = 2

2y = 2

y = 1

So when x = 0, y = 1

Now set y to 0:

-x + 2(0) = 2

-x = 2

x = -2

So when y = 0, x = -2

Simply plot the two following points:

(0 , 1) and (-2 , 0)

And don't forget to join these two points up!

Attatched is an image of this graph.

Answer:

The snow cone in a cup will hold more.

Step-by-step explanation:

Firstly, to find the area of the cone you need to know the formula:

[tex]\frac{1}{3}\pi r^{2} h[/tex]

So simply plug the values in:

[tex]\frac{1}{3}\pi 4^{2} 13[/tex]

= 217.81 = 218cm³

To find the area of a cylinder, you need to remember the formula:

The radius is half the diameter so:

Radius = 8 ÷ 2 = 4

[tex]\pi r^{2} h[/tex]

So simply plug these values in:

[tex]\pi 4^{2} 5[/tex]

= 251.33 = 251cm³

So this means that because the snow cone in a cup is 251cm³ whereas the traditional snow cone is only 218cm³, the snow cone in a cup will hold more.

Answer: 4x² + 4x - 2 - [tex]\frac{3}{2x+3}[/tex]

Step-by-step explanation:

You can use either synthetic or long division.  I am using synthetic division:

2x + 3 = 0   ⇒   x = [tex]-\frac{3}{2}[/tex]

 [tex]-\frac{3}{2}[/tex]   |    4    10    4    -6

       |    ↓    -6    -6    3

            4     4    -2   -3  ← -3 is the remainder

            ↓     ↓     ↓

           4x² +4x  -2  ← factored polynomial

Answer: compass and straightedge or ruler

Perpendicular bisector of a line segment

Geometry construction using a compass and straightedge

compass and straightedge or ruler

Step-by-step explanation:

Answer:

You need a straight edge and a compass.

Step-by-step explanation:

The straight edge should not be marked in any way. You are not allowed to put a mark on the straight edge at all. The only property it has is that it has no curvature in any direction.

The compass must be flexible and at the same time it must be able to stay at one radius unless changed by the owner. It's only property is that it can draw a perfect  circle once the radius of the circle has been chosen,

Answer:

2.2 million tons

Step-by-step explanation:

20% of 5.5 million tons is 1.1 million tons. That is how many are mixed with other products. So that would leave you 4.4 million tons of apples.

50% of 4.4 is 2.2 so 2.2 million tons are used for apple juice.

Answer:

2.2 Million

Step-by-step explanation:

First, we wish to determine what percentage of the tons of apples are used for apple juice. After 20% is mixed with other products, 80% remains. Half of this is used for apple juice; therefore, 40% of the tons of apples is used for apple juice. To calculate 40% of 5.5 million tons, we find 10% and then multiply by four. 10% = 0.55, and 0.55* 4 = 2.2. Thus, 2.2 million tons are used for apple juice.

The value of angle θ will be 16 degrees. Then the correct option is D.

The solution of the equation means the value of the unknown or variable.

The equation is given below.

24² + 25² – 2(24)(25) cos θ = 7²

Then the value of angle θ will be

24² + 25² – 2(24)(25) cos θ = 7²

    576 + 625 – 1200 cos θ = 49

                          1200 cos θ = 1152

                                   cos θ = 1152 / 1200

                                          θ = cos⁻¹ (1152 / 1200)

                                           θ = 16°

Then the correct option is D.

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Answers:

a) 4/5

b) 1/5

================================================

Let's say you start off with $100. If you spend 3/4 of that, then you spend 75 dollars (because 75/100 = 3/4). Think of it like 75 cents = 3 quarters. If you spend 75 dollars out of 100 total, then you have 100-75 = 25 dollars left after the first round of spending.

If you spend 1/5th of what is left, then you spend $5 on the second round leaving 25-5 = 20 dollars left at the end of the day.

Total up what you spend for both rounds: 75+5 = 80, which divides over the original amount 100 to get 80/100 = 8/10 = 4/5

If you had 20 dollars at he end of the day, out of 100 initially, then 20/100 = 2/10 = 1/5 is the fraction of what you have left.

note how 4/5 and 1/5 add to 5/5 = 1.00 = 100%. This is because the amount you spend and the amount you have left over must add to 100% of all the money you started with

Answer:

x = 20

Step-by-step explanation:

In an  equilateral triangle, everything is the same; line length and angles. Each angle in an  equilateral triangle is:

180 ÷ 3 = 60

So 3x = 60

Divide both sides by 3 to get x:

x = 20

The constant of variation is usually given using the letter k.

To find K you would divide Y by x, so the equation becomes k = Y/x.

First find k using the first y and x values provided:

k = 10/5 = 2

Now you know k, you can solve for y when x = 2:

using the equation k =y/x, replace k and x with the known values and solve for y:

2 = y/2

y = 2*2

y = 4

Answer: Linear equation y=2x

Step-by-step explanation:

If x=2

Then y=2(2)

y=4

A

Step-by-step explanation:the answer is you have 8 quarter and 13 dimes .

Because you have 5 more dimes than quarters which will equal 3 dollars and 30 cents

Annette has a total of 5 coins according to the total money she has.

Given that,
Annette has 5more dimes than quarters, the total amount is $3.30. How many of each coin does she have is to be determined.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
let the number of dimes be x
Now a number of quarters is x - 5
Accoding to the question,

x + x - 5 = 3.30
2x = 3.30 + 5
2x = 8.30
x = 4.15
Now,
here
number of dimes has approximately = 4
number of quarters = x - 5 = 4 - 5 = -1 (value is negative which is not possible). = 0

Thus, Annette has a total of 5 coins according to the total money she has.

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Answer:

g(x) is translated 6 units down from f(x)

Step-by-step explanation:

given a function f(x) then f(x) + c represents a vertical translation

• If c > 0 then vertical translation up ↑

• If c < 0 then vertical translation down ↓

[tex]4x+3>-9\qquad\text{subtract 3 from both sides}\\\\4x>-12\qquad\text{divide both sides by 4}\\\\\boxed{x>-3}[/tex]

Answer:

A. (-6,18)

Step-by-step explanation:

The point (2,-2) and (-4,13) on the graph

First we frame an equation of the line using two points

y = mx + b where m is the slope and b is y intercept

slope = [tex]\frac{y_2-y_2}{x_2-x_1} =\frac{13+2}{-4-2} = \frac{15}{-6} = -2.5[/tex]

m = -2.5

Lets find out b

y = mx+b

y= -2.5x + b

Plug in (2,-2) and find out b

-2 = -2.5(2) + b

-2 = -5 + b (add 5 on both sides)

b = 3

so equation of line is y = -2.5 x + 3

Now we check with each option

(-6,18)

Plug in the x  and y in our equation and check it

y = -2.5 x + 3

18 = -2.5(-6) + 3

18 = 15+3

18=18  true

So (-6,18) lies on the graph

a, b, c - sides of a triangle

Therefore:

a + b > c

a + c > b

b + c > a

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

We have a = AB, b = 140mi, c = 100mi.

(1)     a + b > c

AB + 140 > 100    subtract 140 from both sides

AB > -40 → AB > 0

----------

(2)    a + c  > b

AB + 100 > 140      subtract 100 from both sides

AB > 40

-----------

(3)    b + c > a → a < b + c

AB < 140 + 100

AB < 240

Answer: William is 7 years old

Hope this helps, I can take the time to explain if needed:)

By creating a system of equations from the information given and solving for William's age, we determine that William is 7 years old.

The question presents a typical age-related algebra problem. We have three unknowns: William's age, his father's age, and his sister Mary's age. To solve this problem, we need to set up a system of equations based on the information provided.

Let's let W stand for William's age, F for his father's age, and M for Mary's age.

The first piece of information tells us that William is 1/6 as old as his father, so F = 6W.

The second piece says that William is 5 years older than his sister Mary, so W = M + 5.

Lastly, we know that the sum of all their ages is 51, so W + F + M = 51.

Now, we'll substitute F and M from the first two equations into the third equation:

W + 6W + (W - 5) = 51

This simplifies to:

8W - 5 = 51

Adding 5 to both sides gives us:

8W = 56

Dividing both sides by 8, we find:

W = 7

Therefore, William is 7 years old.

The graph that represents Margo's coin collection is:

      Graph of line going through (1, 4) and (3, 10).

It is given that:

She was given 1 coin as a gift, and she adds 3 coins per year.

Let a_n denote the amount of Money Margo had in the end of the "nth" year.

According to the given information we have:

[tex]a_1=1+3=4[/tex]

[tex]a_2=4+3=7\\\\a_2=a_1+3[/tex]

[tex]a_3=10\\\\a_3=a_2+3\\\\\\a_3=a_1+3\times 2[/tex]

and so on.

Hence, we get:

[tex]a_n=a_1+3(n-1)[/tex]

Hence, we get a Arithmetic progression.

with first term as 4 and common difference as 3.

Hence, the graph is:

Graph of line going through (1, 4) and (3, 10).

( Since at n=1 we have: [tex]a_n=4[/tex]

and at n=3 we have: [tex]a_3=10[/tex]  )

The expression that does not represent the total sale price, including sales tax, of the item is x * (1 - 0.20 + 0.06). Hence the correct option is c.

1. Calculate the sale price after the markdown:

Original price: x dollars

Markdown rate: 20%

Sale price after markdown: x * (1 - 0.20) = 0.8x dollars

2. Calculate the amount of sales tax:

Sales tax rate: 6%

Sales tax amount: 0.06 * 0.8x = 0.048x dollars

3. Calculate the correct total sale price:

Sale price after markdown + Sales tax amount = 0.8x + 0.048x = 0.848x dollars

4. Analyze the given expressions:

x * (1 - 0.20) + 0.06x: This expression correctly calculates the discount and adds the sales tax to the original price, so it represents the total sale price.

x * (1 - 0.20) + 0.06 * 0.8x: This expression also correctly calculates the discount and adds the sales tax to the discounted price, so it represents the total sale price.

x * (1 - 0.20 + 0.06): This expression combines the discount and sales tax into a single percentage (14%), but it applies this percentage to the original price (x) instead of the discounted price (0.8x). This leads to an overestimation of the final sale price, so it does not represent the correct total price.

0.8x + 0.048x: This expression correctly calculates the sum of the discounted price and the sales tax amount, so it represents the total sale price.

Therefore, the expression that does not represent the total sale price, including sales tax, of the item is x * (1 - 0.20 + 0.06). Hence the correct option is c.

Complete question:

Deena decides to mark down prices at her jewelry store 20% for a clearance sale. She must add 6% to the sale price for state sales tax. Suppose an item was originally priced at x dollars. Which expression does not represent the total sale price, including sales tax, of the item?

x * (1 - 0.20) + 0.06x

x * (1 - 0.20) + 0.06 * 0.8x

x * (1 - 0.20 + 0.06)

0.8x + 0.048x

Answer:

14+22=Y

Step-by-step explanation:

Since it is 22 years from now, you would add 22 to your current age, 14, to get Y, the age.

The correct equation to find your age 22 years from now, if you are currently 14, is 14 + 22 = Y. Solving the equation gives Y equals to 36.

The correct equation that can be used to solve for your age, Y, in 22 years if you are currently 14 years old then the second option i.e., equation 14 + 22 = Y is the correct answer.

This equation represents an addition where you add the number of future years (22 years) to your current age (14 years old). When you solve this equation, Y equals to 36, which would be your age 22 years from now, assuming you're currently 14 years old.

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Answer:

24

Step-by-step explanation:

Just Add 10 to both sides (The rule is that in equations, what you do to one side, must be done to the other

[tex]14=y-10\\14+10=y-10+10\\24=y[/tex]

Answer:

24

Step-by-step explanation:

14 = y - 10

Addition property of equality: You can add the same value to both sides.

14 + 10 = y - 10 + 10

Add: 24 = y

y = 24

Solution means the value of the variable.

Answer:

30 minutes

Step-by-step explanation:

She plays 1/2 of a song in 1/4 of a minute so that would be 15 minutes because if you divide 60 by 4 you would get 15. You would multiply 15 by 2 because if she plays a full song you multiply 1/2 by 2 to get a whole. So she will need 30 minutes to play a full song

Answer:

B) 2

Step-by-step explanation:

If you start from the origin and go to point B, you went up 2, and to the left 1. Now if you go from the origin to B', you went up 4, and to the left 4. Lets compare the ratios.

2/1  and 4/2

You had to multiply the first ration by 2 to get to the second ratio.

Answer:

The ratio of dogs to cats is 3 dogs to 5 cats

Step-by-step explanation:

dogs to fish:    1:10

fish to cats :     6:1

dogs to cats:  3:5

FISH:

llllllllll (10)     llllllllll (10)     llllllllll(10)   (30 fish)

DOGS: 1 dog per 10 fish

D D D   3 dogs

CATS: 1 cat per 6 fish

C C C C C

Ratio represents partial data as some multiplies from numerator and denominator are lost due to simplification.  You can assume them to be variables.

The ratio of dogs to cats is 3:5

We actually cannot get real quantities but we can use variables to partially get the information of how much their quantities were.

I said 'partially' since we don't get real values but with variables only.

Since the ratio is a:b, thus let the cancelled multiple during simplification was x.

Then we have:

First quantity = ax

Second quantity = bx

It is given that:

Ratio of dogs to fish = 1:10

Then let number of dogs = 1x = x and number of fishes = 10x

Similarly,

Ratio of fish to cats = 6:1

Then let the multiple was y, then

Number of fishes = 6y,

Number of cats = 1y = y

But we have number of fishes = 10x and 6y both

Since number of fishes is constant, thus, they are equal. Or

[tex]10x = 6y\\\dfrac{x}{y} = \dfrac{6}{10} = \dfrac{3}{5}\\[/tex]

The ratio of dogs to cats = [tex]\dfrac{\text{Numbers of dogs}}{\text{Number of cats}} = \dfrac{x}{y} = \dfrac{3}{5}[/tex]

Thus, the ratio of dogs to cats is 3:5

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Answer:

1 day   21 hours   40 minutes

Step-by-step explanation:

5 days 6 hours 20 minutes

- 3 days 8 hours 40 minutes

============================

We will need to borrow  minutes from the hours because we don't have enough.

1 hour = 60 minutes

6-1 = 5 hours

20 +60 = 80 minutes

5 days 5 hours 80 minutes

- 3 days 8 hours 40 minutes

==========================

We will need to borrow  hours from the days because we don't have enough.

1 day = 24 hours

5 -1 =4 days

5 + 24 = 29 hours

4 days 29 hours 80 minutes

- 3 days 8 hours 40 minutes

==========================

1 day   21 hours   40 minutes

Answer:

1 day 21 hours 40 minutes

Step-by-step explanation:

you have to convert the days to hours, then convert the hours to minutes then subtract

4 days 29 hours 80 minutes - 3 days 8 hours 40 minutes = 1 day 21 hours 40 minutes

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