Mathematics Middle School

HELP PLEASE
use the given information to answer each question.

7. A dress that normally sells for $72 is on sale for $45. what is the percent decrease in the price?

8. A home purchased for $120,000 in 2012 is sold for $156,000 in 2015. what is the percent increase in the price?

9. the CD warehouse purchases CDs for $6 each and sells them for $9 each. what is the percent increase in the price?

10. the CD warehouse is having a clearance sale. A CD player that originally sells for $60 is now priced at $36. what is the percent decrease in the price?

11. the local highschool sold 1914 tickets this year to its spring musical. That was 174 more rickets sold than last year. what is the percent increase in the number of tickets sold?

12. Ken's heart rate went from 74 beats per minute while resting to 148 beats per minute while exercising. What is the percent increase In his heart rate

Answers

Answer 1
7.
Discounted price X
————————— = ———
Original Price 100

45 x
—- = —-
72 100

Cross multiply

45 times 100= 4500
72 times x= 72x

72x=4500

Divide

4500/72= 62.5%

Related Questions

Help plz I don't know

Help plz I don't know

Answers

Option 1 cause a is scaled to b then b is scaled to c
La numero 1 es la correcta

Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.



What is the mean number of minutes spent on the phone?

Some students recorded how many minutes they spent on the phone in one day. They put the results in a

Answers

Answer:   31

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

PLEASE HELP!! Simplify 5 / 2 squared show your steps please :)

Answers

Answer:

5/2 is already in the simplest form. It can be written as 2.5 in decimal form (rounded to 6 decimal places).

Step-by-step explanation:

there is no explanation

5.2 is the answer and decimal for is 2.5

evaluate the expression when m=5. m^2-16

Answers

The answer should be 321 if I’m not wrong
5^2 - 16 = 25 - 16 = 9

Write the coordinates of the vertices after a rotation 180° counterclockwise around the origin.

Write the coordinates of the vertices after a rotation 180 counterclockwise around the origin.

Answers

Answer: swap u and v I don't think w will change

Step-by-step explanation:

-

Well if it’s going 180 degrees, then it’s gonna be in Q1. Therefore the numbers would be in the positive, positive section. So U -8 = U’ +8, V = V’ +6 and W = W’ +6. That goes to show that 180 degrees will have the same coordinates.

*GIVING BRAINLIEST* Tell whether the ordered pair is a solution of the inequality whose graph is shown.

*GIVING BRAINLIEST* Tell whether the ordered pair is a solution of the inequality whose graph is shown.

Answers

Answer:

1.yes 2. no 3. yes 4. yes 5. yes

Step-by-step explanation:

1. is yes because the point is in the shaded region ,same goes for 4 2. is no because it is not in the shaded region. 3 and 5 are a point on the line and since the line is solid not dotted it will be a yes

All are yes except the 2nd one just remember the first number in the ordered pair is the x so count on the horizontal line and the second number is y so count on the vertical line and you can see if it falls in the shaded area or not

can someone help with this assignment

can someone help with this assignment

Answers

Answer: 1 gallon is 4 quarts, 2 gallons is 8 quarts, 3 gallons is 12 quarts, and 4 gallons is 16 quarts. 1 quart is 2 pints, 3 quarts is 6 pints, 6 quarts is 12 pints, and 8 quarts is 16 pints. 1 pint is 2 cups, 3 pints is 6 cups, 5 pints is 10 cups, and 9 pints is 18 cups. A swimming pool is 5,000 gallons, A juice box is 2 pints, A soup bowl is 2 cups, and a watering can is 8 quarts. In order of least to greatest is 6 pints, 18 cups, 2 gallons and 6 quarts. In the picture it shows you the work for number 5. <3

Answer:

Step-by-step explanation:1 gallon is 4 quarts, 2 gallons is 8 quarts, , and 4 gallons is 16 quarts. 1 quart is 2 pints,,so 8 quarts is 16 pints. 1 pint is 2 cups, 3 pints is 6 cups, 5 pints is 10 cups, and 9 pints is 18 cups. A swimming pool is 5,000 gallons, A juice box is 2 pints, A soup bowl is 2 cups, and a watering can is 8 quarts. In order of least to greatest is 6 pints, 18 cups, 2 gallons and 6 quarts.

If l is a vertical line passing through points A(a, b) and B(c, d), then what can you say about b and d?

Answers

Answer:

horizontal

Step-by-step explanation:

PLEASE. Somebody help with this question, as in explaining how I should answer it and perhaps even answering it yourself :)

Bro pls

PLEASE. Somebody help with this question, as in explaining how I should answer it and perhaps even answering

Answers

Answer:

yo no habla english nomas espanol

Step-by-step explanation:

basically it’s asking how the graph of f(x) has been changed to become g(x).

for example, number 7 is stretched by a factor of 2 and shifted 4 units to the left!

HELP MEH Which is one factor that affects the type of cloud that will form?

A.altitude
B.wind direction
C.color of clouds
D.size of ice pellets (◉ω◉)_\

Answers

Answer:

A. altitude

Step-by-step explanation:

As air rises in the atmosphere, it becomes cool because air pressure is less at that altitude. So, when the air cools to a certain degree, it is unable to hold the water vapor and this vapor becomes water droplets and thus, cloud is formed.

A. Altitude. I had this on my test and I choose A and got it right hope this helps!

Need help ASAP
Will give BRAINLIEST

Need help ASAPWill give BRAINLIEST

Answers

Step-by-step explanation:    Surface area of triangular prism = 2A + PH.

                                                Lateral surface of a triangular prism = Length × (a + b + c)  

i hope it helps u :-)

Answer:

225 and 243.4

Step-by-step explanation:

Area of triangle = bh/2

A = 4*4.6/2

A = 9.2 cm sq

A of 2 triangles = 9.2*2 = 18.4 cm sq

Now, Area of 1 rectangle = lb --> 15*5 = 75 cm sq

A of 3 rectangles = 75*3 = 225 cm sq

Now, LSA = 225 cm sq. (excluding the triangles)

TSA = A of tr. + A of rec. = 18.4 + 225 = 243.4 cm sq

Hope it helped. Pls mark me the BRAINLIEST! Don't fool pls

52+g=45+11; g=3 what is the answer

Answers

52+g = 45 + 11; = 7/10

Which number is not in scientific notation? Question 15 options: 1) 0.2 ⋅ 103 2) 3 ⋅ 1028 3) 1.03 ⋅ 10−2 4) 1.5 ⋅ 10−6

Answers

I believe it’s number 2.
The answer is not 2. its 4

If a Bully insulted five different people in your class every day and gave each person 3 insults every hour for five hours, how many insults would the bully give in total in 3 days? (I already know the answer but I will give you brainliest if you figure out.)

Answers

5•3=15 and 15•3=45 so I think the answer would be 45. Am I correct?

Pls solve and show each step

Pls solve and show each step

Answers

Answer:

H. is the correct answer.

Step-by-step explanation:

You find range by subtracting the lowest amount from your data by the highest amount. The highest number in Ms. Gambino's class is 12, and the lowest is 5.

\(12-5=7\)  This is the range of Ms. Gambino's class

The highest number in Mr. Joe's class is 10 and the lowest is 5

\(10-5=5\\\) This is the range of Mr. Joe's class.

Therefore, the range in Mr. Joe's class is less than the range of data in Ms. Gambino's class.

I think it is H try that one

can someone help will give 100 points

can someone help will give 100 points

Answers

Answer:

A and C

Step-by-step explanation:

The first question will be A because V = lwh

V = lwh

V = 6 x 3 x 4

V = 72cm²

Therefore making the answer to the second question C.

The answers are going to be A

(4 3/10 −2 7/15 ) * 20 ( 4 3/10 and 2 7/15 are fractions)

Answers

Answer:

110/3 or 36 2/3

Step-by-step explanation:

4 3/10-2 7/15=11/6

11/6•20=110/3

Answer:

110/3 or 36 2/3

Step-by-step explanation:

Evaluate the parenthesis first which is 11/6. Multiply that by 20 to get 110/3 or 36 2/3

kaylie and her family have decided to go on a mountain biking trip. use the graph tp draw a graph that represents their trip.
In one hour they rode one mile up the mountain. the next two hours they rode an additional three miles up the mountain. next, they stopped to have a lunch for an half hour. after lunch they rode two more miles up the mountain for two hours. finally they rode back to the bottom of the mountain in two hours.

Answers

Answer:

1234567891011121314151617

Answer:

where is the question?

Step-by-step explanation:

On an architect’s drawing of a house, 1 inch represents 1.5 feet. If the bedroom window is 5 inches long on the drawing, how many feet long will it be in the actual house?

Brainliest if you answer

Answers

Answer:

3.33~

Step-by-step explanation:

Since 1 inch represents 1.5 feet, you'll divide 5 inches by 1.5. And get 3.33 repeating

Answer:

7.5 feet

Step-by-step explanation:

REASON

According to the given scale, 1 inch on the drawing represents 1.5 feet in the actual house.

Therefore, to find the length of the bedroom window in feet, we need to multiply the length on the drawing (5 inches) by the scale factor (1.5 feet/inch):

5 inches * 1.5 feet/inch = 7.5 feet

Hence, the bedroom window will be 7.5 feet long in the actual house.

If you're satisfied with this answer, please mark as Brainliest

What is the answer?I am very confused just cant find the answer can you help me?

What is the answer?I am very confused just cant find the answer can you help me?

Answers

Answer:

The answer is 4 1/3

Step-by-step explanation:

If you have any questions ask me please!

4 1/3 laps total equaling 3 miles

pls mark as brainliest hope this helps you

Which of the following is a statistical question that can result in numerical data?

How many letters are in your first name?
How many hours do you practice your musical instrument each week?
How many books do the students in your class read each month?
Who is your favorite cartoon character?

Answers

how many letters are in your first name, how many hours do you practice your musical instrument each week, and how many books do students in your class read each month.

A line passes through the points (2,2) and (3,9). What is its equation in point-slope form?

Answers

slope formula

(y2-y1) / (x2-x1)

(9-2) / (3-2) = 7

slope 7

point (2,2)

y - y1 = m(x - x1)

y = m(x-x1)+y1

y = 7(x-2) + 2

The average high temperatures in degrees for a city are listed.

58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57

If a value of 80.4° is added to the data, how does the range change?

The range decreases to 46°.
The range stays 48°.
The range stays 49°.
The range increases to 50°.

Answers

Answer:

The Range Stays 48°.

Step-by-step explanation:\

Since the value 80.4° is not the highest and not the lowest value on the list, it does not change the range.

Hope this helps!

Answer:  B.  The range stays 48

Step-by-step explanation:

The largest answer is 105 and the smallest answer is 57.  The range is the range of numbers from smallest to largest so to find the range you subtract the largest and the smallest

Range = 105 - 57

Range = 48

The range will not change because if you put 80.4 in there, it's not the largest or smallest so it does not affect the range.

So answer is B. The range stays 48

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

I need help ASAP...

Your dad is designing a new rectangular garden for your backyard. He has 20 feet of fencing to go around the garden. He wants the length of the garden to be 2 12 feet longer than the width. How long should he make the garden?

A 6 ¼ feet
B 6 feet
C 5 ½ feet
D 5 feet

Answers

Length = 6.25 feet

Your dad is designing a new garden for your
backyard. He has 20 feet of fencing to go
around the garden.
Let the width is X.
Length is 2 1/2 feet longer than the width i.e. (×+2 1/2) = (×+2.5) feet Perimeter = 20 feet
2(1+b) = 20
(I+b) = 10
(x+2.5+x) = 10
2x+2.5 = 10
2x = 7.5
x = 3.75 feet
Length = (x+2.5)
= (3.75+2.5)
= 6.25 feet
So, the length of the garden is 6.25 feet.
B 6 feet that’s the best I can get

Select all the graphs that show a proportional relationship between x and y
A
B
C
D
(images below)

Select all the graphs that show a proportional relationship between x and y ABCD(images below)
Select all the graphs that show a proportional relationship between x and y ABCD(images below)

Answers

B and C are proportional since they go through the origin (0,0)
B and c. I’m just trying to get some points. I’m sorry if I copied.

11. A scuba diver's elevation changed by -123 feet every minute. This was
1½ times the rate of change for a second scuba diver. What was the rate of
change in elevation of the second scuba diver in feet per minute?

Answers

Answer:

The rate of change in elevation for the second scuba diver is -82 feet per minute.

Step-by-step explanation:

-123 feet every minute.

1.5x more than 2nd diver.

-123/1.5 = 2nd diver rate

2nd diver rate = -82

The rate of change in elevation of the second scuba diver in feet per minute is -82 feet per second.

Given that, a scuba diver's elevation changed by -123 feet every minute.

What is constant rate of change?

When something has a constant rate of change, one quantity changes in relation to the other. For example, for every half  hour the pigeon flies, he can cover a distance of 25 miles. We can write this constant rate as a ratio. For ratios, it's always a good idea to state both units in whole terms.

1½=1.5 times the rate of change for a second scuba diver

Now, rate of change in elevation of the second scuba diver

= -123/1.5

= -82 feet per second

Hence, the rate of change in elevation of the second scuba diver in feet per minute is -82 feet per second.

To learn more about the constant rate of change visit:

https://brainly.com/question/13448675.

#SPJ2

Help please will give brainly! Clara’s friend Brian decides to find his median as well. Find the median and type it in the answer box. What does the median show us?

Help please will give brainly! Claras friend Brian decides to find his median as well. Find the median

Answers

Answer:

The median is 88. The median shows that Brian gets on average 88% on his tests.

Step-by-step explanation:

If you put the numbers in order and get the average of the two middle number, it is 88.

Math question someone pls explain how to answer it I am stuck pt.6

Math question someone pls explain how to answer it I am stuck pt.6

Answers

Answer:

1/5 or 20%

Step-by-step explanation:

Probability = favorable outcomes

                   total num. of outcomes

Probability =  2

                      10

Find the GCF, 2.

2 ÷ 2 = 1

10 ÷ 2 = 5

1/5

sorry if it's wrong

Answer:

The probability of choosing a green shirt is 20%=1/5=.2

Step-by-step explanation:

find the total amount = 10

Find the total of question (probability of choosing green) = 2

set as a fraction:

Numerator = amount needed (2)

Denominator = all things/objects involved (10)

PS*

With probability there is a good chance the answer is going to be less than 1 or 100%, knowing that can help to tell which number goes in what place of the fraction

ex:

10/2=5=500% (this can't be the answer)

So Flip it 2/10=.2=20% (This seems more of a reasonable answer)

The number of planes arriving A at an airport during H hours can be represented by A = 20H. Select whether each statement is true or false representing the same proportional relationship.

True/False: After 4 hrs, 75 planes arrived

True/False: After 6 1/2 hrs, 130 planes arrived

True/False: If 60 planes arrived, 3hrs have passed

True/False: Every 30 minutes, 10 planes arrive.

True/False: Everyday 400 planes arrive at the airport

Answers

The answer is option 3. 60 planes arrive after 3 hours

As the proportionality equation shows; A=20H

When H=3
A=20*3
A=60
C in the answer to this question
Other Questions
"NMR important peaks: Hydrogens on sp, sp2, sp3 carbonsAldehyde, Carboxylic Acid, and Aromatic Hydrogens" (True or False) How much would a spring scale with a spring constant of 120 N/m stretch if it had 3.75 J of work done on it? Swap is pursued not in response to perceived mispricing but as a means of increasing return by holding higher-yielding, longer-maturity bonds. Tax swap. Consider that Fe3+ is a d5 metal center. If it is surrounded by weak-field ligands in an octahedral configuration, how many electrons are in the lower three and upper two metal orbitals, respectively.A. 3,2B. 2,3C. 5,0D. 1,4 What is the purpose of the bill of rightsA - to avoid potential abuses of power under the constitution B- to encourage states to adopt the constitution C- to ensure the power of congress and state legislatures D-to restrict the constitutional rights of us citizen please label these , only if you know Question 2What are the coordinates of the vertices of A'B'C' after each movement? this question is related to Introduction to International Transport and Logistics= in TRADING INDUSTRY Selection of a logistics company Make a pre-selection of the three most important logistics companies in your country. For each of them, you have to write a small description of each company, its strengths and weaknesses depending on the needs of the company you are working on, as well as the experience that the company can have in the main markets to which you export. Compare the different prices and costs of each of them. Based on the foregoing: What would be the company that you would hire for your exports? Why? They came to the finishing line still holding hands and a standing ovation and nine beaming faces said more than these words ever will1) Who is the poet referring to?2) Why where 'they' holding hands? What does it signify?3) What does the poet mean by the last two lines of the extract?Pls answer properly.Don't copy from g..o..o..g..l..e help me you 36 points evaluate the expression for 3 (4-5) -10 the nurse is assessing a client prior to administering the prescribed dose of atenolol po. the client's blood pressure is 120/68 mmhg, and the telemetry monitor shows sinus bradycardia with a rate of 58 beats/minute, and a p-r interval of 0.24. based on this assessment, what intervention should the nurse implement? 4. Assessing How did victory in the Hundred Years' War affect the french. the currency of iceland is called the krona. in july 2007, the exchange rate was roughly 60 krona to a dollar. in july 2011, the exchange rate was roughly 120 krona to a dollar.over this period, would you expect exports from the us to iceland to get cheaper or more expensive in iceland? Mr. Smith's class has collected 72 cans in a food drive. They plan to sort the cans into bags, with an equal number of cans in each bag. Write an expression to show how many cans there will be in each bag. Select the correct answer.What do the two passages have in common?O A.B.O C.D.O E.They both claim that standardized tests can be stressful.They both claim that standardized tests will make grading easier for teachers.They both claim that standardized tests will create stress for teachers and students.They both claim that standardized tests will hold teachers more accountable.They both claim that standardized tests will make students more active in learning. Which action best shows that Sydney cares about Charlie, thedog?She lets Charlie, who is terrified, hide under the sofaduring a lightning strike.She tries to take Charlie down into the basement withher as the storm hits.She clips Charlie's leash on him when the storm hitstheir area.She pets Charlie while she's sitting in the basementwith Sophie and their mother. What was the mission of the Bonus Army in 1932?They were hired to stop veterans from marching on Washington, DC.They were enlisted to keep people from migrating during the Dust Bowl. They demanded that the government enforce Hoovers reforms.They demanded payment of bonuses promised to veterans. each person in a group of students was identified by year and asked when he or she preferred taking classes: in the morning, afternoon, or evening. the results are shown in the contingency table. find the probability that the student preferred afternoon classes given he or she is a junior. round to the nearest thousandth. when do you prefer to take classes? freshman sophomore junior senior morning 19 2 6 16 afternoon 17 3 13 15 evening 8 14 9 7 MARKING AS BRAINLIEST!!