At the start of the experiment substance is measured to be 70°C, and by the end of the experiment its temperature is measured as -60°C. How does the temperature change from the start to the end of the experiment? Represent a decrease in temperature with a negative number.

Answers

Answer 1

9514 1404 393

Answer:

  -130 °C

Step-by-step explanation:

The change is found by subtracting the start temperature from the finish temperature. It is ....

  -60 °C - 70 °C = -130 °C


Related Questions

Helppppp asap!!!!! Solve the inequality 4−23x>2−x for x. Show your work below.

Answers

Answer:

1/11>x

Step-by-step explanation:

4−23x>2−x

 +23x to both sides

4>2+22x

 -2 from both sides

2>22x

  Divide by 22

1/11>x

Triangles A B C and N M L are shown. Angles B A C and L N M are right angles.

What additional information could be used to prove that △ABC ~ △NML? Check all that apply.

∠B ≅ ∠M
△ABC is a right triangle.
△ABC was rotated and dilated by a scale factor between 0 and 1.
△ABC was translated right and down.
∠C ≅ ∠L

Answers

Answer:

A. Angle B is congruent to angle M

C. Triangle ABC was rotated and dilated by a scale factor between 0 and 1

E. Angle C is congruent to angle L

How Do I Know?

Because I literally just did it just now and that's what it said that the answers were. January 9th, 2021- Edge :)

A. Angle B is congruent to angle M

C. Triangle ABC was rotated and dilated by a scale factor between 0 and 1

E. Angle C is congruent to angle L

What is similarity in triangles?

Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles.

Given:

To prove that triangle ABC is similar to triangle NML.

The following points are considered:

∠B ≅ ∠M

△ABC was rotated and dilated by a scale factor between 0 and 1.

∠C ≅ ∠L.

Learn more about similarity here:

https://brainly.com/question/25882965

#SPJ2

Please help!!!!!! Thank you!

Answers

Answer:

y= -4/3x+8

Step-by-step explanation:

y=mx+b is the equation for a line

m=slope

b=y-intercept

First, find the slope

The formula for the slope is: y2-y1/x2-x1

8-0/0-6=

8/-6=4/-3

Plug the slope into the equation

y= -4/3x+b

Now find the y-intercept.

To do this, plug in the x and y of a coordinate and solve for b

I will use (0,8)

8= -4/3(0)+b

8=b

Plug the y-intercept into the equation

y= -4/3x+8

y= -4/3x+8 is your equation

18)
The base of a triangle is 545 cm and the height is 388 cm. What is the area of the triangle? Recall: A-
8y133 cm?
12487 cm?
45\110 cm?
75y22 cm

Answers

Answer:

75y22cm

76c x 34 =876

Step-by-step explanation:

help me please I need help in math I suck and I need good grades

Answers

Answer:

The answer to the question provided is 60.

the answer is D ) 60 , you have to do 109-49 and u get 60 !!

Two times colleen’s age plus three times Ashley’s age equals 108. Colleen’s age is three times Ashley’s age. How old is Colleen

Answers

Answer: 36

Step-by-step explanation: 2x36=72. 36/3=12. 3x12=36. 36+72=108.

Answer: 81 yrs

Step-by-step explanation: a stands for Ashley, c stands for Colleen

2c + 3a = 108

c = 3a

3a + a = 108

4a = 108

a = 27

c = 3a

c = 3 (27)

c = 81

OI PLS ANSWER QUICK PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

16/81

Step-by-step explanation:

Answer:

The answer is 4

cause cancel out the 9 and divide 8and 2

Guys I rlly need help this due in 4 minutes, whats 1683 divided by 383 please help me

Answers

Answer:

1683 / 383 = 4.39 or approx 4.4

Answer:

4.39425587467 or 4 remainder 151.

Step-by-step explanation:

Long division.

Which of the following statements is true?
9.5 2.48
17.18 > 17.2
11.5 = 11.05

Answers

Answer:

I'm gonna say the top one bc the other two aren't correct :)

Simplify the expression.
0.2(2b - 15c)

Answers

Step-by-step explanation:

=0.2(2b-15c)

=0.4b-3c

hope it helps.

Ummi sees an advertisement for her favorite cereal

Answers

Answer:

Thanks for the points!

Foster’s answer to the question he wrote for Ranger was 7x+(-3), while Ranger’s answer was 7x-3.They both checked their work by letting x=5, and they both claim to be correct.Are they both correct?Explain.

Answers

Answer: They are both correct :)

Step-by-step explanation:

They are both correct because 7x + (-3) is the same thing as 7x - 3 if you simplify it.

When you simplify it, you change the expression to:

7x + 1 (-3)

So now you have to distribute the 1 which gives you:

7x - 3

..since positive x negative is negative.

Hope that helped!

pt 2 pls help me with math

Answers

Answer:

Step-by-step explanation:

Slope = (6-3)/(2-1) =3

The cost of a mobile phone processor is directly proportional to its speed.

A 2GHz mobile costs £500.

Let x be the speed of a processor in GHz

Let y be the cost in pounds.

Find a formula linking the variables.

Answers

Answer: See explanation

Step-by-step explanation:

We are going to use the formula used in calculating direct proportion which is equal to:

y = kx

where,

x = speed of a processor in GHz

y = the cost in pounds

Therefore, y = kx

500 = 2k

Therefore, y = 2k

please help quick time

Answers

Answer:

[tex]Area = 34.2cm^2[/tex]

Step-by-step explanation:

Let the three sides be a, b and c respectively.

Such that:

[tex]a = 8[/tex]

[tex]b = 9[/tex]

[tex]c= 10[/tex]

Required

Determine the area

This is calculated as:

[tex]Area = \sqrt{s(s-a)(s-b)(s-c)[/tex]

Where

[tex]s = \frac{1}{2}(a + b + c)[/tex]

Substitute values for a, b and c

[tex]s = \frac{1}{2}(8 + 9 + 10)[/tex]

[tex]s = \frac{1}{2}(27)[/tex]

[tex]s = 13.5[/tex]

Substitute values for a, b, c and s in

[tex]Area = \sqrt{s(s-a)(s-b)(s-c)[/tex]

[tex]Area = \sqrt{13.5 * (13.5 - 8)* (13.5 - 9)* (13.5 - 10)[/tex]

[tex]Area = \sqrt{13.5 * 5.5* 4.5* 3.5[/tex]

[tex]Area = \sqrt{1169.4375[/tex]

[tex]Area = 34.2[/tex] -- Approximated

A leaking faucet drips into a bucket. The faucet drips at a constant rate. The level of water in the bucket rises
3 inches in 6 hours. What was the rate per hour of the water level change?

Answers

Answer:

The per hour rate is 0.5 inches per hour

Step-by-step explanation:

Here, we want to calculate the rate at which the level of the water increased

Mathematically, we can get this by dividing the amount of increment by the time it took

That would be 3 inches divided by 6 hours

= 3/6 = 0.5 inches per hour

The seventh grade class is raising money to have a class trip at the end of the year. They began the year with $1500. They now have $1650 in the account. What is the percent of increase for the money the class has raised ?

Answers

Answer:

The percent of the increase for the money the class raised is 10 %

Step-by-step explanation:

Because if you divide 1500 by 10 you get 150 that means 150 is 10 % of 1500 and if you add 150 to 1500 you get 1650 so the increase of money the class raised is 10 %

I hope this helped :)

A music store buys instruments and then sells them for 30% more than they paid.

If the store buys a guitar for $45, what will the store sell it for?

Answers

$58.50

30% of 45 is 13.5, and 13.50 plus 45 is 58.50

Answer:

$58.50

Step-by-step explanation:

30% of 45 is 13.50 and 13.50 plus 45 is 58.50

Imagine your family agreed to give you some pocket money every day for a month! How do you want to get paid? Pick one from the following options and post your choice in the discussion board. Make sure you state why you chose your option.

Option 1: $10.00 every day

Option 2: $3.00 on the first day, $3.50 on the second, $4.00 on the third, and so on, increasing by $0.50 per day.

Option 3: $0.01 on the first day, $0.02 on the second, $0.04 on the third, and so on, doubling each day.

Answers

option 2 or three cuz one is too simple

Answer:

Option 1 because it will be easier to keep up with since you'e getting the same amount every day.

Step-by-step explanation:

list the integers that satisfy both these inequalities, 2x+9 -12

Answers

Answer:

x < -10.5

Step-by-step explanation:

list the integers that satisfy both these inequalities, 2x+9 <-12

Subtract 9 from  both sides;

2x +9 - 9 < -12-9

2x < -21

x < -21/2

x < -10.5

Hence all the integers are values of x less than 10.5

HELP !!!!!!! MAHH HELP PLEASE !!!!

Answers

A. ( 5 , 3 )
B. ( 3 , -1 )
C. ( 1 , 2 )
D. ( 6 , 3 )
E. ( 9 , 2 )
F. ( 2 , -5 )
G. ( 2 , -3 )
H. (-16/11 , 28/11 )


Please mark BRAINLEST

I need some help please and thank you ​

Answers

The answer is “ A.) $3.50 “

32. Which graph represents yas a function of x?

Answers

Answer:

second one

Step-by-step explanation:

i am pretty sure

John saves $32.40 within 3 months, how much money can John save in 2 years



ℙℤ ℕ ℍℙ ℍ ℍ ☹︎

I will give points | (• ◡•)|

Answers

Answer: $259.20

Step-by-step explanation: Divide $32.40 by 3 to get $10.80. Then multiply $10.80 by 24 (2 years).

Answer:

$259.20

Step-by-step explanation:

32.4·4=129.6

129.6·2=259.2

Additional info

Twelves months in one year so 12÷3=4

Two years so 129.6·2

Just in case you were wondering how I got 4 and 2

3Y - 15 LESS THAN 7Y+ 6

Answers

Answer:

y>-9/4

use this site too, put in an any equation itll solve it in a second and give you a step by step thing to show you how to do it.

Molly is currently one third the age of her mother. In 12 years, Molly will be half the age that her mother will be. How old is Molly's mother now?

Answers

Answer

Molly's mother is 36 years old now.

Step-by-step explanation:

Answer:

Molly's mother is 36 now.

Step-by-step explanation:

(I could go the algabraic way, but I'd prefer not to. I'd rather guess. )

If Molly would be 24 in 12 years and her mother would be 48 at that time, then Molly is 12 now. Her mother would be 36 now.

Well, that didn't take too long! I hope this helps!


There are 3 teachers to 125 pupils during the school program. How many teachers were
there if there were 2 500 pupils

Answers

Answer:

There were 60 teachers.

Step-by-step explanation:

☆We can use proportion to solve this!

[tex] \frac{3 \: teachers}{125 \: pupils} = \frac{x}{2500 \: pupils} \\ \\ \frac{125x}{125} = \frac{7500}{125} \\ \\ x = 60[/tex]

BRAINLEST ANSWER!!

Find the coordinates of midpoint E.

(Enter answer in simplified form.)

Answers

Answer: -2a,-2b

Step-by-step explanation:

Use the right triangle shown to answer the question.
26
32°
*not drawn to scale
What is the approximate value of x?

Answers

Answer:45

Step-by-step explanation:

Answer:13.8

Also Stop cheating

I WILL GIVE YOU BRAINLY PLSS



There are 256 vehicles in a car dealership’s lot. At least 113 of them are hybrid
vehicles. Which inequality describes how many vehicles, at most, are not hybrid?
A. ≤ 143
B. 143
D. ≥ 143


PLSS SHOW YOUR WORK PLSS

Answers

Answer: A

Step-by-step explanation:

Other Questions
Which of the following is not a shared similarity between warm-up and cool-down routines?A. Stretches performed can be the same.B. Consist of a modified version of the exercise performed, such as aslow jog before or after a strenuous run.C. Restore muscles to their resting length.D. Help prevent injury. hiking boots cost $99.55 they are on sale for $15.18 off. what is the percent of discount solve for n -4.2n-1.7=2.08 Write the equation of the line that passes through the point 2,-1 and has a slope of -3 Show how multiplying both sides of the acceleration equation a equals F net over in Byam results in the net force equation F net equals MA ibbleeyckinglegeBeing able to take notes verbatim does notimprove student learning.Note-taking habits are not apt to change untildigital devices are banned from classrooms.s inNew research has shown that digital note-taking isnot superior to writing notes by hand.ndseComputers in the classroom are distracting tostudents. please please pleaseeeee help me!! There are 10 boys and 10 girls in a classroom.8 like to draw.What is the probability that a student picked at random will be a girl who likes to draw?Answer in decimal form rounded to 2 places. Which of the following Identifies why nearly all food Is processed? A. Processing makes food consumable. B. Additives increase food's nutritional value. C. All food is full of bacteria before processing. D. Foods would otherwise spoil before shipping. What did Locke believe the citizens needed to do if the government should fail to protect the natural rights of citizens Henry Uploaded the photos birthday to a cloud storage system. He feels that it's a safe option for data storage. His friend suggested that there Maybe a disadvantage to cloud storage. Which disadvantage is Henry's friend referring to? 1. What is the pH range for an acid?A. 0 - 7- 142. What is the pH range for a baseA. 0 - 7- 143. What are the products of an acid base reaction?A. water and saltB. acid and baseC. water and sugarD. water4. What substance has a neutral pH?A. ammoniaB. waterC. sodium bicarbonateD. vinegar5. The negative ion found in bases is the ______________A. hydrogen ion (H+)B. hydroxide ion (OH-) HELPP!!Identify the correct verb in the following sentence: There (is, are) manythings to do before the holidays. Why did the British Parliament impose (make them pay) taxes on the colonists after 1763? Question 1 options:to pay for King George's lavish lifestyleto pay off the debts from the French and Indian Warto pay for a new building for Parliamentto pay the French to keep out of American affairs Brainliest to right answer a hockey team scored the following number of goals in their last 5 games: 2,3,5,3,2 which is the mean absolute deviation of the number of goals? What does the nucleus of an atom do to its own electrons? To the electrons of a nearby atom? HELP HELP HELP!!!!! Please help! Evaluate each expression 1-(-8) Find the value of x in the isosceles triangle 40inches x 25 inches