Mathematics High School

what is the approximate percent change in a temperature that went down from 120 degrees to 100 degrees?

the percent change is approximately 17%

the percent change is approximately 20%

the percent change is approximately 80%

the percent change is approximately 120%​

Answers

Answer 1

Answer:17

Step-by-step explanation:my teacher explained how 20 is wrong

Answer 2

Answer:

It is 17 percent.

Step-by-step explanation:

Confirming the other answer is right and just saying it's right for other people who might not trust em. :D

Related Questions

1/3 of the 12 pencils were broken.How many pencils were broken

Answers

Answer:

4

Step-by-step explanation:

You can multiply 1/3 by 4 to equal 12 giving you your answer

Answer:

Step-by-step explanation:

4  pencils were broken

1/3 * 12 is 4

Jordan doesn't know how to graph y > 2x + 1 . Can you explain to him using the words below how to do it?

Vocabulary to use:
slope, y-intercept, shade above/below, and dotted/solid line

Answers

Answer:

Step-by-step explanation:

Formula: Y= mx+b

m = slope    |    b = y-intercept

Equation: Y>2x+1

The Y-Intercept is the (1)

Shade above the dotted line because it is >.

You always shade on the left if the left side of the equation is > than the right.

If ≥ Then the line is Solid  ||||  If > Then the line is dotted.

3x-4y=-7 and 4x+3y=24 solve for x

Answers

1. |3x-4y=-7| add 4y to each side |3x=4y-7| divide everything by 3 |x=4/3y-7/3|
2. |4x+3y=24| subtract 3y from each side |4x=-3y+24| divide everything by 4 |x=-3/4y+6|

hope this helps! if correct pls give brainliest! don’t have any yet :))

Melissa shot a rocket 360 meters into the air, it took 4 seconds to fly that far. What’s the average speed of the rocket?

Answers

Answer:90meters per second

Step-by-step explanation:

Evaluate 6x – y if x = 5 and y = 8.
3
22
43
57

Answers

Answer:

the answer is 22

Step-by-step explanation:

you just need to plug in the values of x and y so...

6(5)-8

30-8

=22

Write the inequality:
2 times d is less than 10

Answers

Answer:

2d<10 or 10>2d

Step-by-step explanation:

Answer:

2d < 10

Step-by-step explanation:

On a certain Friday night, the local baseball stadium earned $867.50 in revenue from ticket sales on 310 tickets. Ticket prices are $3.00 for adults and $2.50 for children. How many adults attended the game on Friday?

Answers

Answer:

185

Step-by-step explanation:

Found by solving the system of equations:

3x+2.5y = 867.5

x+y = 310

Choose the definition, theorem, or postulate that justifies the statement.

A. Definition of a Right Angle
B. Definition of Complementary Angles
C. Congruent Complements Theorem
D. Complement Theorem
E. Definition of Supplementary Angles
F. Definition of Angle Bisector
G. Supplement Theorem
H. Definition of Perpendicular
I. Angle Addition Postulate
J. Vertical Angles Theorem
K. Congruent Supplements Theorem
L. Definition of Congruence

Answers

Answer:

its b i got it correct

Step-by-step explanation:

on ed 2020

DUE TODAY AT 12! PLS HELP ALGEBRA WILL GIVE BRAINLIEST!

Answers

Answer:

Im gonna go with b not 100% tho

Step-by-step explanation:

I agree the answer is b

simplify the following​

Answers

Answer:

D. 64 z^ 2

Step-by-step explanation:

Simplify the expression.

PLEASE ANSWER!! Quadrilateral PQRS is shown on the coordinate plane.

Answers

Answer:

i have no idea

dont spam "please answer" its not cool

Linda bought n packs of pencils. Each pack has 12 pencils. Write an equation to represent the total number of pencils p that Linda bought.

Answers

Answer:

p = 12n

Step-by-step explanation:

Given parameters:

     Number of pencils in each pack = 12 pencils

    Number of packs bought  = n

Unknown:

equation for total number of pencils, p = ?

Solution:

  Total number of pencils = number of pencils in each pack x number of packs bought

   Input parameters:

           p  = 12 x n

           p = 12n

8 to the 4th power times 2 divided by 8 to the eleventh power

Answers

Answer:

17179869191.3 (really i used a calculator, it was too hard)

Step-by-step explanation:

8^4 is 4096

2/8 is .25

.25^11 is 2.38418579e-7

4096/2.38418579e-7

17179869191.3

One car rental company charges $30 per day plus $0.25 per mile driven. A second company charges $40 per day plus $0.10 per mile driven. What is the minimum number of miles you must drive a one-day rental at the second company to be less expensive than the same rental at the first company?

Answers

Answer:

66.67=67mi.

Step-by-step explanation:


If Jodi walks 1 hour and 17 minutes, explain how you would convert this to
a decimal AND give how many hours this is.

Answers

Answer:

Step-by-step explanation:

17 minutes is 17/60 hours=0.28333 ≅0.283 rounded to the nearest thousandth

Jodi walked for  1.283 hrs.

See attachment for math work and answer.

which is the best estimate of -14 1/9 × -2 9/10 ​

Answers

Answer: 42

Step-by-step explanation:

-14 1/9 would round to -14

-2 9/10 would round to -3

-14 x -3= 42

find the slope of the line passing through the points (-2,-8) and (7,-8)

Answers

Answer: 0/9

Step-by-step explanation: Hi there!

First, we have to put the points into the y2-y1/x2-x1 form.

Take the y value from the second point (-8) and the first point y value (-8)

and subtract.

-8 - (-8)

to get 0

Now we have to get our denominator by taking the x value from our second point and subtracting it by our first y point.

7 - (-2)

to get 9

so when we put that together...

we get 0/9

So the answer is 0/9.

Hope this answer helps you!

List the following in order from least to greatest 20,2-2,(-2)2,-22

Answers

Answer:

(-22) ,- (2)2 , 2-2 , 20

Step-by-step explanation:

negative then postive

20

2-2=0

(-2)*2=(-4)

-22

hope this helps :)

brainliest?

Which of these numbers is irrational? O A. - 5 9 O B. 1.618 C. 43 O D. VO​

Answers

Answer:

D) [tex]\sqrt{6}[/tex]

Irrational numbers are numbers that cannot be expressed in the form of p/q where q is not equal to zero.

Here is how to understand if a number irrational or not:

Irrational numbers will have decimal expansions which are non-terminating and non-recurring (no pattern or repetition o certain groups of numbers couldn't be observed and the decimal expansion will not ever end)

EXAMPLE: For non-recurring and non- terminating decimal expansions.

2.258755655554517144516517849616128478462131...................76.2879485165886225568656559781230414746108....................4987.251484561515484513184964989494555121266....................

In the above examples, it can be observed that all the decimal digits had no pattern and they will never end.

In this question, the answer is root 6. but it is not necessary that we have to find the decimal expansion, but we ccanfind it easily just by findinf if the given number is a perfect square or not.

EXAMPLE:

[tex]\sqrt{4}[/tex] is a rational number as 4 is a perfect square.[tex]\sqrt{100}[/tex] is a rational number as 100 is a perfect square.[tex]\sqrt{8}[/tex] is not a rational number as 8 is not a perfect square

According to a company's website, the top 15% of the candidates who take the entrance test will be called for an interview. You have just been called for an interview. The reported mean and standard deviation of the test scores are 70 and 7, respectively. If test scores are normally distributed, what is the minimum score required for an interview?

Answers

Answer:

The minimum score required for an interview is 77.252

Step-by-step explanation:

We solve this using z score formula

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Top 15% of the candidates is a ranking that is equivalent to = 100 - 15% = 85th percentile.

The z score of 85th percentile = 1.036

Mean = 70

Standard Deviation = 7

Minimum score = raw score = ???

Hence:

1.036 = x - 70/7

Cross Multiply

1.036 × 7 = x - 70

7.252 = x - 70

x = 70 + 7.252

x = 77.252

The minimum score required for an interview is 77.252

Write an expression for the perimeter of the triangle shown below: (4 points)

A triangle is shown with side lengths labeled 0.5x plus 9, 3x, and negative 3.4x minus 25.


A 6.9x − 16

B 6.9x + 16

C 0.1x − 16

D 0.1x + 16

Answers

Answer:

The expression of the perimeter of the triangle is 0.1x - 16 ⇒ C

Step-by-step explanation:

The perimeter of a triangle is the sum of the lengths of its sides

Let us solve the problem

∵ The lengths of the sides of a triangle are:

0.5x + 93x-3.4x - 25

∵ The perimeter of the triangle = sum of lengths of its sides

∴ The perimeter = (0.5x + 9) + (3x) + (-3.4x - 25)

→ Add the like terms

∵ The perimeter = (0.5x + 3x - 3.4x) + (9 + -25)

→ Remember (+)(-) = (-)

∴ The perimeter = (3.5x - 3.4x) + (9 - 25)

∴ The perimeter = 0.1x + -16

∴ The perimeter = 0.1x - 16

The expression of the perimeter of the triangle is 0.1x - 16

Answer:

C.

Step-by-step explanation:

0.1x − 16

Solve for m: 2m + 5-3m = 7

Answers

Answer:

m=-2

Step-by-step explanation:

Answer: m = -2

Step-by-step explanation:

Simplify 2m + 5 - 3m  to -m+ 5

-m + 5 = 7

Regroup terms.

5 - m = 7

Subtract 5 from both sides.

-m = 7 - 5

Simplify 7 - 5 to 2

-m = 2

Multiply both sides by -1

m = -2

How can you use linear relationships to compare real-world
situations?

Answers

Answer:

Linear equations use one or more variables where one variable is dependent on the other. Almost any situation where there is an unknown quantity can be represented by a linear equation, like figuring out income over time, calculating mileage rates, or predicting profit.

Step-by-step explanation:

a line with a slope of 1 passes through the point (18,15). What is its equation in slope-intercept form?​

Answers

Answer:

y=x-3

Step-by-step explanation:

Equation of the line

The equation of the line in slope-intercept form is:

y=mx+b

Being m the slope and b the y-intercept.

We already have the value of m=1, but need to find b. To do this, we use the given point (18,15) and substitute the coordinates into the equation:

y=mx+b

15=(1)(18)+b

We have used the value m=1. Operating:

15=18+b

Solving:

b=-3

Thus, the equation of the line in slope-intercept form is:

y=x-3

of your division problem by the divisor and compare the result with the dividend. If they are equal, your division was correct. SAMPLE PROBLEM 1: Divide 564 by 47, and check your result with multiplication. your quotient.

Answers

Respuesta:

La respuesta de tu división es  exact  

Step-by-step explanation:

Tu división es de 564/47 el consciente es: 12 ahora multiplicamos 47*12 = 564

Explain why three-dimensional graphs can be misleading. What would be a better type of graph to
use?

Answers

three-dimensional graphs wouldn´t give you the right information but two-dimensional graphs would give you the actual size of the shape.

solve it please fo 35 points

Answers

Answer:

b

Step-by-step explanation:

original cost 14.50 markup:14%

Answers

Answer:

Step-by-step explanation:

Use the given functions to set up and simplify

14%. 14.5 = 14% = 0.14

Simplify 9 to the 2nd power/ 9 to the 7th power

Answers

Answer:

9^2=81, 9^7=478,296,9

Please help im a bit confused

Answers

Answer:

200,000

80,000

9,000,000

10,000,000,000

What is the context of this question?

Step-by-step explanation:

Answer:

So standard form just means 200,000 written as like 200^ something(I think)

Step-by-step explanation:

Other Questions
The grandpapa car traffic function is shown check although following statements are true of the function A glacier is moving at a rate of 0.3 inches every hour. The table below represents this relationship.Glacial MovementDistance Moved (inches)Time(hours)0.310.620.93x4What value of x completes the table? (4+3c^5)(4-3c^5) combine like terms In a 20 item true-false examination, if 12 correct answers constitute a passing grade,what is the probability that someone will pass, if they are guessing? A. .8398B. .2517C. .1201D. .1317 Steven boxes in the light-heavyweight division 4/-7 + -6/5 In simplest form who founded America Read the text The History of Ice Cream:I scream, you scream, we all scream for ice cream! Who doesn't love a nice, cold scoop of ice cream on a warm day? For thousands of years, ice cream has been a decadent dessert loved by most people around the world.There is some argument about who first invented ice cream. Some believe that ice cream was invented by the Chinese people anywhere from 2,000 to 6,000 years ago. They created a recipe of frozen milk and rice that was served as a dessert. Persia has also been credited with first serving frozen desserts. Over 2,000 years ago, the wealthy people of Persia enjoyed shaved ice from the mountains, covered with grape juice. They later learned to freeze rosewater and add different fruit toppings. These desserts were considered delicacies that only the richest families could experience. About 1,000 years after this, there is evidence that suggested Nero, the Roman Emperor, also enjoyed frozen treats and demanded that a constant supply of ice from the mountains be available to him. He liked to add honey to the top of his dessert.Why could only the richest families eat ice cream? Ice cream needed to be stored in a freezer. Ice cream was expensive because it was a rare dessert. Ice cream was hard to obtain from the mountains. Ice cream was only available to those in Italy.PLEASE HELP WILL GIVE BRAINLYEST I NEED HELP PLZ!! Runner 3 does not get a head start. He runs 750 meters every 3 minutes. Write an equation to represent Runner 3s distance y for x minutes.A. y=3x+250B. 750x+3C. 250x+3D. 250x Witch theme is shown MOST clearly in this excerpt A. Dreaming can be a distraction from achieving goals.B. Reality can oftentimes seem like dream.C. Winning is proof that a person has worked hard.D. Success is possible if one truly believes in oneself Below are cash transactions for a company, which provides consulting services related to mining of precious metals. a. Cash used for purchase of office supplies, $1,600. b. Cash provided from consulting to customers, $42,600. c. Cash used for purchase of mining equipment, $67,000. d. Cash provided from long-term borrowing, $54,000. e. Cash used for payment of employee salaries, $23,400. f. Cash used for payment of office rent, $11,400. g. Cash provided from sale of equipment purchased in c. above, $21,900. h. Cash used to repay a portion of the long-term borrowing in d. above, $37,000. i. Cash used to pay office utilities, $3,700. j. Purchase of company vehicle, paying $9,400 cash.Required:Calculate cash flows from operating activities. Which civilization formed a confederation that may have impacted the USgovernment?A) AnasaziOB) IroquoisC) PowhatanOD) Algonquian An).is anything that increases the chances of an unhealthy outcome.A. risk factorB. action planC. health continuumD. habit This activity is important because as world trade has grown, more companies have entered the global market. Once a firm decides to enter the global market, it must choose which means of market entry is the most appropriate. The global market entry strategies vary greatly on the dimensions of financial commitment, risk, marketing control, and profit potential. The goal of this exercise is to demonstrate your understanding of the different types of global market entry strategies: exporting, licensing, joint venture, and direct investment. Roll over each company name to read the description of the firm's strategy, then drop it onto the correct global market entry strategy within the graphic. 1. Yoplait 2. Moodmatcher lipstick 3. McDonald's 4. Ericsson and CGCT 5. Boeing 6. Nissan A. Indirect Exporting B. Direct Exporting C. Licensing D. Franchising E. Joint Venture F. Direct Investment A family member who hasnt worked with computers before has decided to change jobs. Youve been asked to explain some of the basics. You begin by explaining the basic idea of word processing software, spreadsheets, databases, and presentation software. You sense that the following question is coming: Why so many different things? Why cant there just be one software that you could use for everything? How would you answer? what is one second time ? 11.19.4x 5.37Estimate. I dont need the answer immediately. The US has a larger area than China, but China has a larger population. Is this true or false? In "A Warning Against Passion," what does Bront say can happen if a woman loves too much?a.she will go insanec.the man can begin to neglect herb.she will appear to be weakd.none of these explain the similarities and differences among the various networks of exchange in the period from c. 1200 to c. 1450.