Plz :<
In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does this change take place? *
10 points

A -8 hours
B. 1/8 hour
C. 1 hour
D. 8 hours

Answers

Answer 1

Answer:

D 8 hours

Step-by-step explanation:

it has to be positive and it is obviously more than 1 hour so it has to be 8 hours by process of elimination.


Related Questions

The diver is on (-6, 3) on the coordinate plane
The Treasure is on (7, 3) on the coordinate plane

How far is the diver from the treasure.

Answers

Answer:

the diver is 13 away im pretty sure on the coordinate plane

Step-by-step explanation:

because he has to travel from -6 back to 0 then from 0 to 7 which is 6+7=13

The coldest recorded temperature in the United States is –80°F, in Alaska. The warmest recorded temperature in the United States is 134°F, in California. How much higher is the warmest recorded temperature than the coldest recorded temperature?

Answers

Answer:

214

Step-by-step explanation:

I think this is the answer x

Answer:

54ºF

Step-by-step explanation:

I got this by doing -80+135 and I got 54! Hope this helps! Have a great day! :)

GIVING BRAINLIEST! I have a plagiarism checker-

Please answer the following essay question:

Explain why we need to have a common denominator in order to add or subtract fractions.

Answer in paragraph form using complete sentences and include any calculations, graphs, and labeled diagrams as appropriate.

Answers

Answer

If you didn't it there wouldn't be an easy method to do the problem.Having the same denominator is the easiest method and is pretty basic.If you didn't have a common denominator such as:5/8 + 7/6, it would be virtually impossible to solve.

Step-by-step explanation:

30° is used in a pie chart to represent 5 people. How many people were there altogether???

Answers

Answer:

60

Step-by-step explanation:

here are 360° used in a whole pie chart

Using proportion

30° → 5 people

360° → 5 × 360 / 30 = 5 × 12 = 60

There are 60 people altogether

its 60 dhdkshdshbzzh

A plant’s growth rate is observed one time per week over the course of 5 weeks. Since the plant is still a seedling in the first two weeks, the observer starts to record the height of the plant in Week 2. The observer notes that on week 2, the plant is 4 inches high. On week 5, the plant is 13 inches high.

Answers

Answer:

um this is confusing.....

i need some help over here

Answers

Answer:

50

Step-by-step explanation:

Answer:

The first one should be 275 the second is 11000

Step-by-step explanation:

In 2017, a rock band held a concert in Atlanta, Georgia. The attendance was 53,500. However, in 2018, they returned to Atlanta, but the crowd was only 41,900. What was the percent change in crowd attendance from 2017 to 2018? *

An increase of 21.68%
An increase of 27.68%
A decrease of 21.68%
An decrease of 27.68%

Answers

Answer:

A decrease of 21.68

Step-by-step explanation:

A decrease of 21.68 is the correct answer

Mark and Dennis help their grandfather make rootbeer. They need 4 pounds of sassafras to make one barrel of rootbeer, but they only have 1 pound.

How much rootbeer can they make?

Answers

Answer:

im not sure if i have a answer but here's what i have

Step-by-step explanation:

4 x 1=4

4/1=4

4-1=3

4+1=5 but im pretty sure it's one of the first two srry i wasn't much help

i think they could only make one fourth of the recipe

The table shows the number of people waiting in line for different rides at an amusement park.What is the ratio of people waiting in line for the Round-up to people waiting in line for the Slingshot? Roller coaster 15 Slingshot 4 Bumper cars 12 Round-up 11

Answers

Answer:

11:4

Step-by-step explanation:

Hello. All you have to do here is make it as a fraction, so it would be people at the round-up to people at the slingshot. Really it would be a fraction, but on this question it wants a ratio. Hopefully you understand! :D

how do you do
this

(move 3 circles to make the figure upside down

Answers

Answer:

Move the top left and right to the sides of the second to last row, then move the single circle from the bottom row to the top.

Step-by-step explanation:

Please help me if you have the intelligence to thank you

Answers

Answer:

0

Step-by-step explanation:

Three out of five people surveyed said that Shrek 2 is better than Shrek 3 and Shrek 4. If a total of 560 people are surveyed, how many would you expect to agree that Shrek 2 is better?

Answers

Answer:

Shrek 2 IS better than the other 2 because THE OTHER TWO HAS NO PLOT!!

Answer:

336

Step-by-step explanation:

To find the answer, we will cross multiply.

3         ?

5       560

We will first multiply 3*560.

= 1680

Next, we will divide our previous answer by 5.

1680/5= 336

therefore, you would expect 336/560 people to like Shrek 2 better than 3 and 4.

How do I do this?? :(
"Is there only one way to break up a 2-digit number into tens and ones? Explain."

Answers

Yes, to break a 2-digit number into tens and ones it is a simple process. To do it you have to take a number, let's say, 56. We can take the 5, because it has one digit to the right of it, we add one 0 to the right of it. Then we do the 6, which has nothing to the right, so we don't put anything there. 50 and 6. 5 tens and 6 ones.

I'm pretty sure that's the only way. If anyone knows otherwise, please post in the comments.

[PICTURE ATTACHED] HEEELLLPP!

Answers

Answer:

10

Step-by-step explanation:

Quartiles are the values that divide a list of numbers into quarters: Put the list of numbers in order. Then cut the list into four equal parts. The Quartiles are at the "cuts"

...

Box and Whisker Plot

Quartile 1 (Q1) = (4+4)/2 = 4.

Quartile 2 (Q2) = (10+11)/2 = 10.5.

Quartile 3 (Q3) = (14+16)/2 = 15.

Answer:

The second 6

Step-by-step explanation:

So first quartile is the middle number in the beginning section after the middle number if that makes sense. The middle number is 10 so we break it into halves around that. The middle number in the first half is the second 6

5,6,6,7,7,10,14,17,21,25,275,6,6,7,7,  (10) ,  14,17,21,25,27 5,6,(6),7,7

A forest covers 33,000 acres. A survey finds that 0.8% of a forest is old-growth-tree. How many acres of old-growth-trees are there?

Answers

Answer:

264 acres

Step-by-step explanation:

Since 33,000 acres is 100%, 330 acres is 1% because 33000 acres divided by 100 is 330 acres. Then if 330 acres is 1%, 33 acres is 0.1% because 330 acres divided by 10 is 33 acres. 1 divided by 10 is 0.1.

Next 33 acres times 8 because 0.8% is eight times bigger than 0.01%. This equals to 264 acres.

sorry for no picture earlier, anyways pls help

Answers

Answer:

Y=-4x+2

Step-by-step explanation:

The y intercept is 2 when x is 0

its for science but its got math involved
its got to do with speed, time, and distance​

Answers

1) centimeters/ cm 2) snail 2 traveled the greater distance 3) Snail 2 4) D=8 T=8 S=8 answer= 1
_
8

HELp with this l would give you brainlist

Answers

Answer:

10

Step-by-step explanation:

So if you know that 10 skeins makes 4 scarves... then 20 skeins makes 8 scarves (because you doubled it)

and if 10 skeins make 4 scarves... then half that number of skeins should make half the number of scarves... so 5 skeins makes 2 scarves

So we know that 20 skeins makes 8 scarves and 5 skeins make 2 scarves... all we have to do is add up the skeins and find we get 10 scarves

Yea the guy before me is totally right. I doubled check his answer too!

Which of the following is part of the set of integers?
A. negative whole numbers
B. zero
C. natural numbers
D. positive whole numbers

...... you can choose more than one

Answers

Answer:

A, B and D

Step-by-step explanation:

The set of counting numbers, their opposites, and 0 is the set of integers. Integers are counting numbers, their opposites, and zero. … −3,−2,−1,0,1,2,3…

Answer:

a b d

Step-by-step

The set of counting numbers, their opposites, and 0 is the set of integers. Integers are counting numbers, their opposites, and zero.

The population of a town can be modeled by f(x) = 19,820 * 0.98^x. Identify the initial value of the population. Is the population increasing or decreasing? What is the growth or decay factor? How does the population change each year?

Answers

Answer:

all ik is that its increasing i think

Step-by-step explanation:

Pls answer this:

Sam invests $300 in a bank account that earns simple interest. He earns $24 at the end of 12 months. What is his interest rate?

Answers

Answer:

0.667% per month

Step-by-step explanation:

12 months → $24

1 month → $2

interest rate: 2/300 x 100% = 0.667% per month (3s.f.)

I’m not sure if people answered 0.667% but I’m pretty sure it’s that

Carter was given a box of assorted chocolates for his birthday. Each night, Carter treated himself to some chocolates. Carter ate 5 chocolates each night and there were originally 30 chocolates in the box. Write an equation for C,C, in terms of t,t, representing the number of chocolates remaining in the box tt days after Carter's birthday.

Answers

C(t) = 30 - 5t ur very much welcome

Please help me ASAP
I will give brainliest

Answers

Answer:

-23

Step-by-step explanation:

rearrange to point slope form first

slope can be fine by y2-y1/x2-x1 (im using the first 2 points)

so 13-25 = -12 and -54-(-72) = 18, and the slope is -12/18 which is -2/3

then you can use any point (i used the first point) to create the point slope form which is y-ypoint=slope(x-xpoint) and equation would be y-25=-2/3(x+72)

turn it into slope intercept form by multiplying -2/3 within the equation and adding -25 on both sides

you will get y= -2/3x-23

and the y intercept will be (0, -23)

(o,-23)
This is because the slope is -2/3 and if you graph this it’ll show that the line crosses the y intercept at -23

Write the following number in standard form: 3.471 × 10^−5

Answers

0.00003471 is the correct answer I believe

Paul will pay for his new car in 36 monthly payments. If his car loan is for $19,061, then how much will Paul pay each month? Round your answer to nearest cent.

Answers

Answer:

$529.47

Step-by-step explanation:

Answer:678

Step-by-step explanation:

please help
If the team’s average time is less than one minute per leg, then the eighth graders earn 50 points. If not, the seventh graders earn 50 points. Which grade should be awarded 50 points?

Answers

Answer:

the eighth graders receive the 50 pts because, they had the number 58 and 58 is under one minute.

Step-by-step explanation:

Answer:

the eighth graders receive the 50 pts because, they had the number 58 and 58 is under one minute.

Step-by-step explanation:

The body of a 154-pound person contains approximately 2×10^2 milligrams of gold and 6×10^3 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times greater than the number of milligrams of gold in the body?
can you show your work too?
re asked it cs some bozo stole my points but pls hellp asap

Answers

Answer:

5800

Step-by-step explanation:

2x10^2= 10x10= 100x2= 200

6x10^3=10x10x10=1000x6=6000

6000-200=5800

Write 2 4/7 as an improper fraction

Answers

Answer:

18/7

Step-by-step explanation:

you multiply 2 by seven and then add four to the numerator while you keep the denomenator

Answer:

18/7

Step-by-step explanation:

[tex]2\frac{4} {7} \\\\=\frac{7\times2+4}{7} \\\\=\frac{14+4}{7}\\\\=\frac{18}{7}[/tex]

Simplify to create an equivalent expression.
3(2+6d)-5=3(2+6d)−5=3, left parenthesis, 2, plus, 6, d, right parenthesis, minus, 5, equals

Answers

The answer is 18019 I think :)

He reflected awhile, rubbing his nose and cheeks, then skirted to the left, stepping gingerly and testing the footing for each step.



What does it mean if he stepping gingerly?

Answers

Gingerly means “done with great care and caution”. So the phrase “Stepping gingerly” means that he is stepping on the ground tenderly and carefully.
It means he is stepping carefully
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