The fifth period Coordinate Algebra class received their quiz grades back from Mr. Smith today. The students were offered a chance for five quiz points if they constructed a box and whisker plot using the 20 quiz scores. As Mr. Smith's teaching assistant, you are asked to create a solution key for the box and whisker plot. Mr. Smith asked you to report back to him tomorrow morning with the Q1, Q3, and IQR.Use the set of student quiz scores to complete your calculations. Complete your work in the space provided or upload a file that can display math symbols if your work requires it.Turn in the Q1, Q3, and IQR and all of the necessary steps that you took to make your calculations. Fifth Period Quiz Grades: 100, 96, 58, 95, 60, 95, 69, 88, 71, 95, 85, 93, 91, 78, 78, 85, 86, 98, 87, 100

Answers

Answer 1
first, we need to put the numbers in order...
58,60,69,71,78,78,85,85,86,87,88,91,93,95,95,95,96,98,100,100
and since there is an even number of numbers (20), we need to find the 2 middle numbers and divide them by 2 to find the median (Q2)
Q2 (the median) = (87 + 88) / 2 = 175/2 = 87.5
now we take all the numbers below 87.5...and find the median (middle number) and that number will be Q1...there is 2 middle numbers...so we add them and divide by 2
Q1 = (78 + 78) / 2 = 156/2 = 78
now we take all the numbers after 87.5....and find the median...there will be 2 numbers, so we add them and divide by 2..that wil be Q3
Q3 = (95 + 95) / 2 = 190/2 = 95

So in summary :
Q1 = 78 <==
Q2 = 87.5 
Q3 = 95 <==

The interquartile range (IQR) is found by subtracting Q1 from Q3.
IQR = 95 - 78 = 17 <==
Answer 2

"To create a box and whisker plot and calculate the Q1, Q3, and IQR for the given set of quiz grades, we must first organize the data in ascending order:

58, 60, 69, 71, 78, 78, 85, 85, 86, 87, 88, 91, 93, 95, 95, 95, 96, 98, 100, 100

Next, we find the median (Q2), which is the middle value in the ordered list. Since there are 20 scores, the median will be the average of the 10th and 11th scores:

Q2 = (87 + 88) / 2 = 175 / 2 = 87.5

Now, we need to find the first quartile (Q1), which is the median of the first half of the data (excluding the median if the number of data points is odd). Since we have an even number of scores, we take the first 10 scores and find their median:

Q1 = (71 + 78) / 2 = 149 / 2 = 74.5

For the third quartile (Q3), we take the median of the second half of the data (excluding the median if the number of data points is odd). Again, we have an even number of scores, so we take the second set of 10 scores and find their median:

Q3 = (95 + 96) / 2 = 191 / 2 = 95.5

Finally, the interquartile range (IQR) is calculated by subtracting Q1 from Q3:

IQR = Q3 - Q1 = 95.5 - 74.5 = 21

Therefore, the Q1, Q3, and IQR for the fifth period Coordinate Algebra class quiz grades are:

Q1 = 74.5

Q3 = 95.5

IQR = 21

These values are essential for constructing the box and whisker plot and for understanding the spread of the middle 50% of the quiz scores."


Related Questions

how do you divide polynomials using long division

Answers

This is a simple example:-
             x   +   9
         ------------------------------
x - 1 )  x^2  +  8x  -    9
           x^2  -   x                  subtract
           ------------
                     9x  -  9
                     9x  -  9
                  ----------
                     ..........

First divide x into x^2  to give x which goes above 
Then multiply x - 1 by x to give x^2 - x

Subtract this fro x^2 + 8x  gives 9x
Bring down the - 9 then divide x into 9x
and finally  multiply x - 1 by  9 to give   9x - 9
Finally subtract  and you sre done. There is no remainder as x - 1 is a factor of x^2 + 8x - 9.

The  polynomial must be in descending powers of x . If one is missing you insert it  with a coefficient of zero before you start the division. 

for example if you have   x^3 - 3x + 12   you write it as

 x^2 + 0x^2 - 3x + 12


                   

Final answer:

The process of dividing polynomials using long division involves dividing the leading terms, multiplying and subtracting to find the remainder, and repeating the process until completion. This method ensures proper management of exponents through subtraction while dividing coefficients.

Explanation:

Dividing Polynomials Using Long Division

To divide polynomials using long division, you should follow these steps:

Write the dividend (the polynomial to be divided) and the divisor (the polynomial by which to divide) in a long division format.Divide the leading term of the dividend by the leading term of the divisor to get the first term of the quotient. Multiply the divisor by this first term of the quotient and write the result beneath the dividend.Subtract this result from the dividend to get a remainder. Bring down the next term of the dividend if necessary.Repeat steps 2 to 4 until there are no more terms to bring down in the dividend.The result is the quotient, with a possible remainder. If there is a remainder, it can be written as the remainder over the divisor.

Remember that when you divide the exponents in division of exponentials, you should subtract the exponents while dividing the coefficients normally.

By applying these steps, we achieve a quotient and remainder that satisfy the equation: Dividend = (Divisor × Quotient) + Remainder. This technique is especially useful for division of exponentials where you maintain equality by dividing both sides of an equation and properly manage exponents.

Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?


Answers

We will use the slope formula and fill it in accordingly.

[tex] m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} [/tex]

Our x2 is 5 and x1 is -2; our y2 is -3 and y1 is 6

[tex] m=\frac{-3-6}{5-(-2)}=\frac{-9}{7} [/tex].

The slope of your line is -9/7

Answer

Find out the slope of the points  G(–2, 6) and H(5, –3).

To prove

The equation for finding the slope of two points be

[tex]m = \frac{y_{2} -y_{1}}{x_{2} - x_{1}}[/tex]

where m represented the slope .

As given

points G(–2, 6) and H(5, –3).

[tex]m = \frac{-3-6}{5+2}[/tex]

solving the above terms

[tex]m = \frac{-9}{7}[/tex]

Therefore the slope of  points G(–2, 6) and H(5, –3) is

[tex]m = \frac{-9}{7}[/tex]



Elliot has a collection of 20 toy cars. Will he be able to put an equal number of toy cars on 3 shelves

Answers

no the closest he can go is 18

He will not be able to put an equal number of toy cars on 3 shelves.

He can put only 18 toy cars in equal number of toy cars of 6 on 3 shelves.

What is division?

Division is a simple operation in which a number is divided. It's easiest to think of it as a number of objects being divided among a certain number of people.

According to the question

Elliot has a collection of 20 toy cars.

Put an equal number of toy cars on 3 shelves.

= [tex]\frac{20}{3}[/tex]

= 6.6

Thus, He can put only 18 toy cars in equal number of toy cars of 6 on 3 shelves.

He will not be able to put an equal number of toy cars on 3 shelves.

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Write the equation you would use to solve each problem; then solve.

The quotient of a number and 15 is 120. Find the number

Answers

120 x 15 = 1800 :) thats the answer


Two airplanes left the same airport and arrived at the same destination at the same time. The first airplane left at 8:00 a.m. and traveled at an average rate of 496 miles per hour. The second airplane left at 8:30 a.m. and traveled at an average rate of 558 miles per hour. Let x represent the number of hours that the first plane traveled.

How many hours did it take the first plane to travel to the destination?



Enter an equation that can be used to solve this problem in the first box.

Solve for x and enter the number of hours in the second box.
Equation:

x =
h

Answers

The formula for distance is equal to:

d = v * t

where d is distance, v is velocity or speed, and t is time

 

Since the distance travelled by the two airplane is similar, therefore we can create the initial equation:

 

v1 * t1 = v2 * t2

 

We know that v1 = 496, and v2 = 558 so:

 

496 t1 = 558 t2

or

x = 558 t2 / 496

 

We also know that airplane 1 travelled 30 minutes (0.5 hours) earlier than airplane 2, therefore:

 

x = t2 + 0.5

 

Hence,

496 (t2 + 0.5) = 558 t2

496 t2 + 248 = 558 t2

t2 = 4 hours

 

x = t2 + 0.5 = 4 + 0.5

x = 4.5 hours

 

 

So the equation is:

x = 558 t2 / 496

 

And the first plane travelled:

x = 4.5 hours

c = 0.20m + 2.00 what is the charge for 1mile ride?

Answers

All you have to do is substitute the 1 into the m for the mile ride:
C = 0.20(1) + 2.00 = 0.20 + 2.00 = 2.20

The charge for 1 mile ride is $2.20.

All of the items in a bicycle shop are on sale for 30% off the regular price. Rene spends $74.90 to buy a bicycle and a helmet (without taxes). If the regular price of the bicycle is $85, which equation can be used to find the regular price of the helmet, h?

Answers


x= helmet

Equation to find the helmet price;

x = 74.90 - [85 - (30/100 *85)]

If you want the price helmet

x = 15.40

Answer:

0.7 (85 + h) = 74.90

Step-by-step explanation:

The programmer can type 55 words per minute.


At that rate, how many words can the programmer type in 11 min?



66

550

605

655

Answers

55 x 11 = 605, so the answer is 605

Answer:

605 words per 11 minutes!

Step-by-step explanation:

60 / 55 = 1.0909

11 x 60 = 660

660 / 1.0909 = 605 + (6x - [tex]\int\limits^a_c {b} \, dx[/tex]) / 10

605 + (6x - [tex]\int\limits^a_c {b} \, dx[/tex]) / 10 rounded = 605



A publisher claims that the average salary paid at its company is $37,500 but it could differ as much as $4,500. Write and solve an absolute value inequality to determine the range of salaries at this company.

|x − 37500| ≤ 4500; The salaries range from $33,000 to $42,000
|x − 37,500| ≤ 4500; The salaries are less than $33,000 or greater than $42,000.
|x − 37500| ≥ 4500; The salaries range from $33,000 to $42,000
|x − 37,500| ≥ 4500; The salaries are less than $33,000 or greater than $42,000.

Answers

|x − 37500| ≤ 4500; The salaries range from $33,000 to $42,000

Can Anyone Help Me

The number of e-mails sent each day in the United States is measured in the thousands.

A. True
B. False

Answers

The answer is false.

Which expression is equivalent to 12x^4(x-3)(x+5)/ 30x(x+3)(x+5)

Answers

simplifying we get     2x^3(x - 3) / 5 (x + 3)

The equation which is equivalent to the given expression is 4x + y = 21.

What is an expression?

Expression is a finite combination of symbols that is well-formed according to rules that depend on the context. An expression is a combination of numbers, variables, or a combination of numbers and variables, and symbols and it is connected by the sign of equal.

We have,

Expression [tex]\frac{12x^4(x-3)(x+5)}{30x(x+3)(x+5)}[/tex]

So,

Now,

To get the equivalent expression,

Cancel the common factor (x + 5) of the given expression,

On solving,

We get,

[tex]\frac{12x^4(x-3)}{30x(x+3)}[/tex],

Now,

On solving further,

We get,

[tex]=\frac{2x^3(x-3)}{5(x+3)}[/tex]

So, We can not solve it further,

So, This is the expression that is equivalent to the given expression.

Hence, we can say that the equation which is equal to the given expression is [tex]\frac{2x^3(x-3)}{5(x+3)}[/tex].

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Part of a tiling design is shown. The center is a regular hexagon. A square is on each side of the hexagon, and an equilateral triangle joins the squares. Complete the pattern around the hexagon and calculate the total area of the pattern.



A.
403.1 in.^2
B.
503.1 in.^2
C.
1,119.6 in.^2
D.
1,379.4 in.^2

Answers

Since the squares are 10×10, 6 of them = 100×6=600in^2
There are 6 equilateral triangles around the hexagon, and the hexagon itself is made of 6 of those equilateral triangles. So 12× triangle's area will complete the total area.
Height of the triangle will split it into 2 30-60-90 triangles. So the h will be 5SR3, since the height will bisect the base (10) into 2 5's. And a 30-60-90 will have sides of x, xSR3, and 2x. Since x=5, the h will be 5SR3 = 8.66.
So area of the triangle:
1/2×b×h = 1/2×10×8.66 = 43.3
Now 12×43.3 = 519.62
Now add that to the 600 from the squares:
519.62 + 600 = 1,199.62 in^2
The correct answer is (C.)

Can Anyone Help Me

You need to sell 250 candy bars at $2 each. If you meet your goal, the total amount of money you will have is measured in the _____.

A. hundreds
B. tens
C. ones
D. thousands

Answers

A. hundreds
250 bars * $2 each = $500

Mark all statements that are true

A: this graph is not a function because the value x=3 is assigned to more than one y-value.

B: this graph is a function because the value of x is the same for every value of y

C: the equation of this line is x=3

D: this graph is a function whose domain is the set ( 3 )

Answers

The definition of a function is where each input has a single output, and since x=3 has more than one output A is correct (and B is not correct)

For C, since x=3 (where 3=y) accurately describes the graph, this is correct (also since it's an equation)

D is correct since the domain is the possibilities of the x values and 3 is the only one that can fulfill it


HELP NEED QUICKLY ILL GIVE A BRAINLIEST!!!
Mrs. Mac puts money in her piggy bank every week. The function graphed can be used to model the total amount of money in her piggy bank x week after her birthday given Mrs. Mac’s birthday is at x = 0.

1.What is the x intercept and what does it represent?

2.What is the y-intercept and what does it represent?

3.What is the slope and what does it represent?

Answers

the x intercept is -12 and it represents the amount of money she started with.
the y intercept is +3 and it represents the amount of money she has now.
the slope is positive and it represents the amount of money shell get in the future

A) X intercept is -12, this represent the number of weeks before her birthday she started saving money

B) Y intercept = 3, this is the amount of money she has in her piggy bank before her birthday


C) slope = change in Y over the change in X = 1/4, this means she is saving 25 cents per week


If f(x) =3x^2 and g(x) =4x^3 +1 what is the degree of fg (x)

Answers

f°g(x) = f(g(x)) = 3(g(x))² = 3(4x³ + 1)².
Now, when you expand the bracket, you will find that the highest degree or degree of the polynomial is 6. 
∴degree of fg (x) = 6

What is m∠AEB?
(See attachment)

Answers

Hey there,
Angle AEB + Angle CED = 180 degrees (vertically opposite angles)
(5x-10) degrees + (3x + 40) degrees = 180 degrees
5x -10 + 3x + 40 = 180 degrees
5x + 3x= 180 + 10 - 40
8x = 150
x = 150 / 8
   = 18.75 degrees 
Angle AEB = (18.75 x 5) - 10 
                  =83.75 degrees.

Hope this helps ^_^

~Top
Final answer:

Unfortunately, without the attachment or diagram, it is not possible to determine the measure of angle AEB.

Explanation:

The question asks for the measure of angle AEB. In order to find this angle, we need to refer to the given diagram or attachment. Unfortunately, there is no attachment provided with the question, so it is not possible to provide a specific answer to the question. Please provide the diagram or attachment so that I can accurately determine the measure of angle AEB.

Write a compound inequality to represent all of the numbers between -4 and 6.

Answers

-4<x<6 would be the compound inequality

Answer: -4<x<6 would be the compound inequality

Step-by-step explanation:

Given △PQR≅△STU, m∠R=80°, and m∠S=70°, what is the measure of ∠Q?

Enter your answer in the box.

Answers

∆ PQR is congruent to ∆ STU

This means --
P = S
Q = T
R = U

R = 80°
S = P = 70°

So in ∆PQR, we know R = 80° , P = 70° and Q = ?

Using angle sum property of triangle,
P+ Q + R = 180°
70° + 80° + Q = 180°
150° + Q = 180°
Q = 30°

Hope This Helps You!

Congruent triangles have equal corresponding angles

The measure of <Q is 30 degrees

The given parameters are:

m∠R=80°, and m∠S=70°

△PQR≅△STU

Given that both triangles are congruent, then the measure of Q is calculated using:

Q = 180 - 80 - 70

Evaluate the difference

Q = 30

Hence, the measure of <Q is 30 degrees

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Foster is centering a photo that is 1/1 2 inches wide on a scrapbook page that is 10 inches wide. How far from each side of the page should he put the picture? Please enter it as a mixed number

I will give 39 points if you answer this question

Answers

The answer would be 4 1/4 (4.25)
10-1.5=8.5/2=4.25

Hope this helps!
Can u plz mark me as brainliest? I really need it!

Answer: 4.25

Step-by-step explanation:

What is the value of x?
Enter your answer in the box
13 is top 12 is bottem and the left is X

Answers

Answer: x = 5

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

Explanation:

We have a right triangle as indicated by the square angle marker. Two of the sides are known: specifically the hypotenuse (13) and one of the legs (12). The other leg (x) is unknown.

We can use the Pythagorean Theorem to find x

a = 12 is one of the known legs
b = x is the unknown leg
c = 13 is the hypotenuse

Pythagorean Theorem:
a^2 + b^2 = c^2
12^2 + x^2 = 13^2
144 + x^2 = 169
144 + x^2-144 = 169-144 ... subtract 144 from both sides
x^2 = 25
sqrt(x^2) = sqrt(25)  ... apply square root to both sides
x = 5 

Side Note: Keep in mind that x can't be negative so it doesn't make sense to use the plus/minus here. We'll only stick with the positive version.

What is the return value of "select".substring(4, 4)?

Answers

Final answer:

The expression "select".substring(4, 4) will return an empty string, as the start and end indices are the same and no characters are included in the specified range.

Explanation:

The substring method in many programming languages, including Java and JavaScript, is used to extract a portion of a string between two specified indices. In the expression "select".substring(4, 4), we are asking for the part of the string starting at index 4 and up to, but not including, index 4. Since the start and end indices are the same, the method will return an empty string.

It's important to note that string indices are zero-based, meaning that the first character of the string is at index 0. The string "select" has six characters, with indices ranging from 0 to 5. Therefore, calling substring with identical start and end indices will not include any characters in the resulting string.

Example:To retrieve the first character of "select", you would use "select".substring(0, 1).To retrieve "lec" from "select", you would use "select".substring(1, 4).

A regulation baseball field measures 90 feet between each base. What is the distance around the bases in yards?

Answers

home to 1st base = 90 ft
1st base to 2nd base = 90 ft
2nd base to 3rd base = 90 ft
3rd base to home = 90 ft
so we have a total of : (90 * 4) = 360 ft

there are 3 ft in 1 yd....
so in 360 ft, there are : 360/3 = 120 yds <==

or u could just figure it between each base....90 ft = (90/3) = 30 yds per base...and u have 4 bases....so that (4 * 30) = 120 yds

The distance around the bases in yards is 30 yards.

In order to determine the distance between each base in yards the unit of conversion of feet to yards have to be first determined. 1 foot is equivalent to 0.333333 yards.

1 feet = 0.333333 yards

The second step is to multiply the distance between each base by the unit of conversion.

Distance between each base x unit of conversion

90 x 0.333333

= 30 yards

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Find the exact coordinates of the centroid for the region bounded by the curves y=x, y=1/x, y=0, and x=2

Answers

The centroid of the region bounded by [tex]\(y=x\), \(y=\frac{1}{x}\), \(y=0\),[/tex] and [tex]\(x=2\)[/tex] is at [tex]\((\frac{2}{3}, 0)\).[/tex]

To find the centroid of the region bounded by the curves[tex]\(y=x\), \(y=\frac{1}{x}\), \(y=0\), and \(x=2\),[/tex]we need to first find the area of the region and then compute the coordinates of the centroid using the following formulas:

The centroid of a region with area[tex]\(A\)[/tex]  is given by [tex]\((\bar{x}, \bar{y})\)[/tex]where

[tex]\[\bar{x} = \frac{1}{A} \int\int_R x \, dA\][/tex]

[tex]\[\bar{y} = \frac{1}{A} \int\int_R y \, dA\][/tex]

First, let's find the points of intersection for the curves:

1. [tex]\(y=x\) and \(y=1/x\):[/tex]

  [tex]\[ x = \frac{1}{x} \implies x^2 = 1 \implies x = 1 \][/tex]

  So, the intersection point is [tex]\((1,1)\).[/tex]

2. [tex]\(y=0\) and \(x=2\):[/tex]

  This intersection occurs at [tex]\((2,0)\).[/tex]

Now, we'll integrate to find the area and then the centroid:

1. Area:

[tex]\[ A = \int_{0}^{1} (x - \frac{1}{x}) \, dx + \int_{1}^{2} (\frac{1}{x}) \, dx \][/tex]

 [tex]\[ A = \left[\frac{x^2}{2} - \ln|x|\right]_{0}^{1} + \left[\ln|x|\right]_{1}^{2} \][/tex]

[tex]\[ A = \left(\frac{1}{2} - 0 - (0 - \infty)\right) + (\ln(2) - \ln(1)) \][/tex]

 [tex]\[ A = \frac{1}{2} + \ln(2) \][/tex]

2. Centroid[tex](\(\bar{x}\)):[/tex]

 [tex]\[ \bar{x} = \frac{1}{A} \left[\int_{0}^{1} x(x - \frac{1}{x}) \, dx + \int_{1}^{2} x(\frac{1}{x}) \, dx\right] \][/tex]

 [tex]\[ \bar{x} = \frac{1}{A} \left[\left[\frac{x^3}{3} - \frac{1}{2}\ln|x|\right]_{0}^{1} + \left[\ln|x|\right]_{1}^{2}\right] \][/tex]

 [tex]\[ \bar{x} = \frac{1}{A} \left(\frac{1}{3} - 0 - (0 - \infty) + (\ln(2) - \ln(1))\right) \][/tex]

 [tex]\[ \bar{x} = \frac{\frac{1}{3} + \ln(2)}{\frac{1}{2} + \ln(2)} \][/tex]

[tex]\[ \bar{x} = \frac{2}{3} \][/tex]

3. Centroid [tex](\(\bar{y}\)):[/tex]

[tex]\[ \bar{y} = \frac{1}{A} \left[\int_{0}^{1} (x - \frac{1}{x}) \cdot 0 \, dx + \int_{1}^{2} (\frac{1}{x}) \cdot 0 \, dx\right] \][/tex]

 [tex]\[ \bar{y} = 0 \][/tex]

Therefore, the centroid of the region is at the point [tex]\(\left(\frac{2}{3}, 0\right)\).[/tex]

Find the probability that when a couple has two ​children, at least one of them is a boy. ​(Assume that boys and girls are equally​ likely.)

Answers

The probability that when a couple has two ​children, at least one of them is a boy is 0.75.

Based on the information given, the sample space will be (BB, BG, GB, GG)

where,

B = Boy

G = Girl

Therefore, based on the sample space given, at least a boy occurs in 3 places out of 4. This will be 3/4 = 0.75.

In conclusion, the correct option is 0.75.

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Final answer:

The probability of a couple having at least one boy when they have two children is 75%, as three out of four possible outcomes include at least one boy. These outcomes are two boys, a boy then a girl, and a girl then a boy.

Explanation:

The subject of the question is probability which is a branch of mathematics. In order to find the probability that when a couple has two children, at least one of them is a boy, we need to analyze possible outcomes. The couple could have two boys (BB), a boy and a girl (BG), a girl and a boy (GB), or two girls (GG). Hence, the total unique outcomes are 4 (BB, BG, GB, GG).

Considering at least one boy, the possible outcomes could be BB, BG, GB, which are 3 possibilities. Finally, the probability is given as the ratio of favorable outcomes to the total number of outcomes. So the probability of having at least one boy is 3/4 or 75%.

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describe the steps you would follow to write a two-step inequality you can use to solve a real-world problem.

Answers

Here are some of my notes from my 7th grade math class!

Final answer:

To write a two-step inequality for a real-world problem, first identify the unknowns and known quantities related to the problem. Next, construct an inequality that represents the problem, and finally solve the inequality for the unknown variable. For example, budgeting for a party with a savings goal can be represented as an inequality.

Explanation:

To write a two-step inequality to solve a real-world problem, follow these steps:

Identify the unknowns: Understand what needs to be determined. This involves defining the variable(s) that will represent the unknown quantity(ies) in the problem.

Identify the known quantities: Make a list of the quantities that are given or can be inferred from the problem. These are the values you will use to construct your inequality.

Construct the inequality: Use the information from steps 1 and 2 to create an inequality that represents the problem. This often involves expressing the relationship between the known and unknown quantities using an inequality symbol (such as <, >, ≤, ≥).

Solve the inequality: Apply algebraic methods to solve for the unknown variable. This may involve isolating the variable on one side of the inequality.

For example, if you are planning a party and know you have a budget of $200 for decorations but want to save at least $50, you could set up the inequality x + 50 ≤ 200, where x represents the amount you can spend on decorations.

PLEASE HELP!!!!!!
What is the value of t?
t-12/2=3t/2 - 3
A)-3
B)-1
C)1
D)3

Answers

The correct answer is D

Answer:

D i aready took the test

Step-by-step explanation:


Can Anyone Help Me

A relation is a special type of function.

A. True
B. False

Answers

yes it s true
A. True

What is 4x+5(7x-3)=9(x-5)

Answers

4x + 5(7x-3) = 9(x-5)
4x + 35x - 15 = 9x - 45   Distribute
39x - 15 = 9x - 45   Simplify
-9x +15 -9x +15   Combine Like Terms

30x = -30   Simplify
/30 /30   Divide both sides

x = -1   Answer

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Anyway... I hope this helped! :)

If it is 11:15
a.m. at teens high school, then a bell will ring. which of these is true?
a. if a bell is not ringing, then it must not be 11:15.
b. if a bell is ringing, then it is 11:15.
c. if it is not 11:15, then a bell will not ring.
d. if a bell is ringing, then it is not 11:15.
e. if a bell is not ringing, then it is 11:15.

Answers

My god, this is tricky but it's between D and E. 

I think  it should be e. 
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