it is 212.5°C outside when the temperature starts increasing by 2.5°C each hour. How long will it take for the temperature to reach 25°C?

Answers

Answer 1

Answer: 75 hours

Step-by-step explanation:

Assuming you meant decreasing... you find out the span between 212.5 and 25 which is 187.5 and then divide it by 2.5 (which is the change)


Related Questions

Identify the transformation that was applied to this letter


A. Rotation about the origin
B. Reflection over the x-axis
C. Translation
D. Reflection over the y-axis

Answers

it should be A ) Rotation about the origin

2/5 (s + 20) pls help

Answers

Answer:

2s/5 + 8

Step-by-step explanation:

if you wanted it simplified..

WILL GIVE BRAINLY
IM SO DUMN khans doesn’t make sense with this question to me cuz I did it already and it was apparently wrong

Answers

Answer:

20units

Step-by-step explanation:

Please answer it is urgent.

Answers

Answer:

2/3

Step-by-step explanation:

The slope is a 2/3 gradient :>>

Answer:

I believe that the answer is 2/3.. but I may be wrong...

Step-by-step explanation:

if 4 books cost $52, how much will 2 books cost?​

Answers

Answer:    2 books would cost $26.

Step-by-step explanation:

4 books : $52                 You need to get down to 2 books. Divide 4 by 2 and .............................................52 by 2.

2 books : $26

A group of students go to the store to buy school supplies. If they buy three
binders and four notebooks, the bill will be $4.85. If they buy three binders and
ten notebooks, the bill will be $8.75. What is the cost of each binder and
notebook?

Answers

Answer: Binder = 75c    notebook = 65c

Step-by-step explanation:

3b + 10n = 875

3b + 4n = 485

Subtracting gives:

6n = 390

390/6 = 65

n = 65

Substitute 65 into 3b + 4n = 485

3b + 260 = 485

3b = 485 - 260

3b = 260

b = 75

Earth makes a full rotation every
24 hours, Noptune makes a full rotation
every 16 hours. What is the ratio of
Earth rotations to Neptune Rotations?
(in simplest terms)

Answers

Answer:

I think the ratio is 3:2 :)

24:16=12/8=6/4=3/2. The answer would be 3:2 bc you divide both sides by 8 or, like I did, divide it by 2 three times.

I suck at math please help!

Answers

Answer:

62

Step-by-step explanation:

the triangles angles always add up to 180 degrees

66+52=118

180-118=62

hope this helps :) have a nice day !!

I need help with these questions. Please show workings.​

Answers

Answer:

see explanation

Step-by-step explanation:

∠ AOB = 360° - 264° = 96°

The altitude OM bisects ∠ AOB and the base AB

(a)

∠ MOB = 0.5 × 96° = 48°

Using the cosine ratio in right triangle MOB

cos48° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{OM}{OB}[/tex] = [tex]\frac{18}{r}[/tex] ( OB is the radius r of the circle )

Multiply both sides by r

r × cos48° = 18 ( divide both sides by cos48° )

r = [tex]\frac{18}{cos48}[/tex] ≈ 27 cm ( to the nearest cm )

(b)

Using the tangent ratio in the right triangle MOB

tan48° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{MB}{OM}[/tex] = [tex]\frac{MB}{18}[/tex] ( multiply both sides by 18 )

18 × tan48° = MB then

AB = 2 × MB = 2 × 18 × tan48° = 36 × tan48° ≈ 40 cm ( to nearest cm )

In 2011, 39 people died by being struck by lighting, and 24 people were injured. There were l 310,000,000 people in the United States. What is the probability of being one of the people struck by lighting

Answers

Answer: 0.0000203%

Step-by-step explanation:

The total number of people struck by lightning includes both those who died and those who were injured:

= 39 + 24

= 63 people

Probability of being struck is:

= People struck / U.S. Population

= 63 / 310,000,000

= 0.0000203%

1)
Given that r = 2 in and x = 3 in, determine the surface area of the cylinder. Round to the nearest tenth of an inch.
A)
25.1 in 2
B)
62.8 in2
C)
75.4 in2
D)
113.1 in 2

Answers

Answer:

B) 62.8 in^2

Step-by-step explanation:

Thanks alot, and Is that right?

Anybody good in geometry and know how to do this? Free Brainliest and points!

Answers

Answer:

Step-by-step explanation:

That is a horizontal reflection about the vertical line x=2.

Answer:

the answer is B. reflection over y = 4

Step-by-step explanation:

I don't understand how to find the volume of these shapes.

Answers

Answer:

It tells you in the book all you have to do is plug the numbers in the right spots

These are the volumes that it gives you. All you have to do is plug in the numbers

v= 1/2bh

v= bh

v = Bh

Step-by-step explanation:

solve this and show work​

Answers

Answer:

1.71

Step-by-step explanation:

x/4 = 3/7

4 * 3 = 12

12/7 = 1.714285714285714

Rounded to the nearest hundreths, the answer is  1.71

The length of a ribbon is 5 6 meter. Sun Yi needs pieces measuring 1 5 meter for an art project. What is the greatest number of pieces measuring 1 5 meter that can be cut from the ribbon? How much ribbon will be left after Sun Yi cuts the ribbon?

Answers

Answer:

5

Step-by-step explanation:

Hope this helps

What is m∠1?....................

Answers

answer is 147

hope that helped

Answer:

m∠1 = 147°

Step-by-step explanation:

triangle = 180°

117 + 30 = 147

180 - 147 = 33

line = 180°

180 - 33 = 147

m∠1 = 147°

There are 35 students in a classroom. The ratio of girls to boys is 2 to 3. How many boys and how many girls are there in the classroom?

Answers

Answer:

15 girls and 10 boys

Step-by-step explanation:

Answer:

students=35

ratio of girls to boys=2:3

2+3=5

girls.

⇒[tex]\frac{2}{5}[/tex]×35

⇒2×7

⇒14

boys

⇒[tex]\frac{3}{5}[/tex] × 35

⇒3×7

⇒21

Step-by-step explanation:

It costs $16 for 8 specialty chocolates for Valentines Day. Find the unit rate 5 per item (how much for 1 chocolate).​

Answers

Answer:

Unit Rate: 2$ per chocolate

If you're buying 5, it will cost $10

Step-by-step explanation:

Finding the unit rate:

16 ÷ 8 = 2

2 x 5 = $10

If you're talking about what happens if each chocolate cost $5 per item it would be

$5 x 8 chocolates = $40

I hope this helped! :)

At the zoo the ratio of monkeys to gorillas is 5:1 if there were 20 monkeys how many gorillas would there be?

Answers

Answer:

4

Step-by-step explanation:

To get to 20 you have to multiply 5 by 4 so do the same with the 1 and multiply by 4 to make it proportional. 1 x 4= 4. There would be 4 gorillas

Describe the line below using slope and intercept.

y = 3/2x - 4

Answers

The equation is not linear so the slope doesn’t exist

Devin has a new job as an apple employee he is paid $16 per hour a one time bonus of $4,325. If he earns $4,997 on his paycheck, how many hours did he work

Answers

$4,997 paycheck - $4325 bonus = $672 earnt
$672 earnt / $16 per hour = 42 hours

Devin worked:

42 hours

A triangle is dilated with the resulting image appearing half as large as the original. Which rule best represents this dilation?

A. (x, y) (2x, 2y)

B. (x, y) (.5x, 2y)

C.(x, y) (x-.5, y-.5)

D. (x, y) (.5x, .5y)

Answers

That’s the answer C.(x,y) (x-.5 y-.6)

The measures of the two acute angles of a right triangle are in the ratio 2:7. What are the measures of the two angles?

Answers

Answer:

20, 70

Step-by-step explanation:

9x=90

x=10

angles are 20 and 70

please mark as brainliest

help with hw plz also I already found x ​

Answers

Step-by-step explanation:

If you found x already just look for the triangle that equals 180 or whatever the total angle is for problem.

1. Acute 2. Obtuse 3. Right
4. Obtuse 5. Right 6. Acute
7. Acute 8. Obtuse 9. Right

which of the following represents the average rate of change of the function f(x) = 2x - 3

Answers

Average rate of change, Correct Answer is (0,-3)

What is the new location of the point (7,-8)
when it has been rotated 90 degrees?

Answers

Answer: The answer is A

Step-by-step explanation:

what percentage of this 100 square grid is shaded?​

Answers

Answer:

80 percent

20 for the first shaded multiply with 4 and its 80

Answer:80%

About 80% I’d say

There’s 20 white blank spaces

100-20=80

How many days is in:

3 weeks
5 weeks
7 weeks
9 weeks​

Answers

Answer:

3 weeks 21 days, 5 weeks 35, 7 weeks 49, 9 weeks 63 days

Step-by-step explanation:

Each week is 7 days

3 weeks- 21 days
5 weeks- 35 days
7 weeks- 49
9 weeks- 63

help 8+x2=−12..im confused

Answers

Answer:

Step-by-step explanation:

No real solutions exist. Subtract 8 on both sides to get:

[tex]x^2=-20[/tex]

You cannot take the square root of a negative number without involving imaginary numbers.

Answer and Explanation

__________________________________________________________

-10

__________________________________________________________

The answer is -10 because...

You need to multiply 2 by "x," and to find out what "x" is, we need to add...

[tex]2+-12[/tex]

__________________________________________________________

And if we add  [tex]2[/tex] by [tex]-12[/tex], we get [tex]-10[/tex], which is our answer.

__________________________________________________________

and now, if we add [tex]-20[/tex] by  [tex]8[/tex], we get [tex]-12[/tex], which is what the equation equals, and this is how we know it is correct.

__________________________________________________________

Hope this helps! :)

HELP ME! im not sure !

Answers

Answer:

193.2

Step-by-step explanation:

The way you would find the volume to a rectangular prism, is multiplying your length x width x height.

THE ANSWER IS D I THKNK
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