please help me :(



Angharad sleeps for 8 hours each night, correct to the nearest 10 minutes.
The total time she sleeps in the month of November (30 nights) is T hours.
Between what limits does T lie?

Answers

Answer 1

Answer:

The limits between which T lies is 273 hours 30 mins < T < 242 hours 30 minutes

Step-by-step explanation:

The number of hours Angharad sleeps each night = 8 hours ± 10 minutes

The actual time Angharad sleeps each night = 8 hours ± 5 minutes

Which gives the maximum time Angharad sleeps = 8 hours 5 minutes = 485 minutes per night

The minimum time Angharad sleeps = 7 hours 55 minutes = 475 minutes

The number of days in the month of November = 30 nights

The maximum time in minutes Angharad sleeps in November, [tex]T_{max}[/tex] = 30 nights × 485 minutes/night = 14,550 minutes = 242.5 hours = 242 hours 30 minutes

The minimum time in minutes Angharad sleeps in November, [tex]T_{min}[/tex] = 30 nights × 475 minutes/night = 14,250 minutes = 237.5 hours = 237 hours 30 minutes

Therefore, we have, the limits between which T lies given as follows;

273.5 hours < T < 242.5 hours.

Answer 2

Answer:

235 ≤ T ≤ 245

Step-by-step explanation:

(8 hours per night x 30 nights) = 240 hours

The deviation from 8 hours per night is as much as 10 minutes per night.  

Over 30 nights, the total deviation can be as much as (30 x 10 minutes) = 300 minutes = 5 hours.

So T can be as much as (240 + 5) = 245 hours, or as little as (240 - 5) = 235 hours.

In inequality form,

235 ≤ T ≤ 245


Related Questions

answer both and i will give you branliest

Answers

I think is 24 and 28

Hope this helps

Please help due soon!

Answers

H = 2sqrt2
D = 6sqrt3

In a 45,45,90 triangle the hypotenuse is (x)sqrt2 while the side lengths are equivalent being a single value x. Therefore, when given the hypotenuse and solving for the leg, divide 4 by sqrt2 to get 4sqrt2/2 which simplifies to 2sqrt2 when the denominator and numerator cancel.

In a 30,60,90 triangle the short leg x is across from the 30 degree angle meaning the angle across from the 60 degree angle is x times the sqrt of 3. Therefore the long leg is 6sqrt3

What is the area of a circle that has a circumference of12r?
I need it now

Answers

452.16 is the answer I think

Use the diagram below to answer the question. There is a small building that is 24 feet tallThe fire fighter is standing 7 feet away from the building.

Answers

Answer:

24- 7 = 17

Step-by-step explanation:


PLS HELP TON OF POINTS AND BRAINLIEST

Answers

Answer:

sss axiom

Step-by-step explanation:

Answer:

wa pow

Step-by-step explanation:

What is the answer to the division problem shown?
9)4590

Answers

510 would be your answer. I hope this helped! :)

Answer:510

Step-by-step explanation:Can double check internet

Which us a solution to the followung linear equality?
A. (0, 0)
B. (2, -2)
C. (0, 2)
D. (-3, 4)​

Answers

B probably sorry if I’m wrong

brooke plays on her schools softball team. Last season she was at bat 500 times and made a safe hit 28% of the time. How is 28% expressed as a fraction


PLEASE HELP please?

Answers

Answer:

28/100

Step-by-step explanation:

How many solutions does 46x– 23 = 46x + 23 have

Answers

Answer:

no solution

Step-by-step explanation:

Let's first try to solve this.

Notice that there is a 46x term on both sides, so we can subtract both sides by 46x, leaving us with:

-23 = 23

Well... this is a false statement: -23 does not equal 23.

Thus, this as no solution.

Answer:

No solutions found

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

46*x - 23 - (46*x + 23) = 0

Equations that are never true

Solve : -46  =  0

This equation has no solution.

A non-zero constant never equals zero.

Plz help i need to turn it in in 30 min.

Answers

Answer:

First space:1000

Second space:1.1

Third space11000

Step-by-step explanation:

solve this equation 3x + 5 = 7x – 7

Answers

Add 7 to both sides
3x + 12 = 7x
Subtract 3x
12 = 4x
Divide by 4
x = 3

Answer:

3

To find:

x

Step-by-step explanation:

3x + 5 = 7x – 7

3x - 7x = -7 - 5

-4x = -12

x = -12/-4

x = 3

hope it helps u!

plzzz help me with this ​

Answers

Answer:

Please find attached the required flow chart proof created using Microsoft Visio

Step-by-step explanation:

The given parameters are;

[tex]\overline {BD}[/tex] bisects ∠ADC and ∠ABC

Required to proof that ΔABD ≅ ΔCBD

The two column proof is given as follows;

Statement                [tex]{}[/tex]            Reason

[tex]\overline {BD}[/tex] bisects ∠ADC    [tex]{}[/tex]           Given

∠ADB ≅ ∠CDB    [tex]{}[/tex]                Definition of angle bisector

[tex]\overline {BD}[/tex] bisects ∠ABC    [tex]{}[/tex]           Given

∠ABD ≅ ∠CBD    [tex]{}[/tex]                Definition of angle bisector

[tex]\overline {BD}[/tex] ≅ [tex]\overline {BD}[/tex]            [tex]{}[/tex]                Reflexive Property

ΔABD ≅ ΔCDB    [tex]{}[/tex]                ASA

The Angle-Side-Angle ASA, ASA, congruency postulate, states that if two angles and the included side of one triangle is congruent to two angles and the included side of another triangle, then the two angles are congruent.

WILL GIVE BRAINLIEST FOR RIGHT ANSWER
What is the solution to this system of equations?

Answers

Answer:

A) (-2, 4)

Step-by-step explanation:

the answer is A
hope this helped

What is the image point of (-8, 7) after a translation right 5 units and up 5 units?

Answers

Answer:

(-3,12)

Step-by-step explanation:

please help me 56 points

Answers

Answer:

Are you trying to solve for x?? orrr? what

Step-by-step explanation:

I can help you just gotta be specific

I need help
Write a linear inequality to represent the graph

Answers

Answer:

y < 1/2x -5

Step-by-step explanation:

1/2 is the slope

-5 is the y intercept

A particular satellite is 10 ft wide. A
model of it was built with a scale of 1 in :
2 ft. How wide is the model?

Answers

3 ft

Step-by-step explanation:

⚠️HELP PLEASE ⚠️Two gears on a machine are aligned by a mark drawn from the center of one gear to the center of the other. If the first great has 24 teeth, and the second gear has 40 teeth, how many revolutions of the first gear are needed until the mark line up again?

Answers

Answer:

26

Step-by-step explanation:

can yall help me or not?

Answers

Answer

desktop for 1st because it sold less computers and made more money.

for 2nd laptops 1.53 and computer 4.34

Step-by-step explanation:

15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:

Answers

I could be wrong but I think the answer is D. Can I have brainliest?

Which of the following is most likely the next step in the series? O B. On # on # OCH oath​

Answers

Answer:

I don't really understand the question? could you explain please :)

Step-by-step explanation:

are all equilateral triangles acute?

Answers

Answer:

Yes, all equilateral triangles are acute.

Step-by-step explanation:

yea

hope this helps :)))

Consider the conditional statement:
"If the store has the Playstation 5 in stock, then I will buy one."
What is the conclusion of the statement?

Answers

Answer:

he's getting the ps5

Step-by-step explanation:

In conclusion if the store has the ps5 he's getting it and if not he wont

For the function y =[tex]3x^{2}[/tex]– 2x + 5, what is the output if the input is 4?

A) 9

B) 21

C) 45

C) 51

ill give brainly to first correct answer

Answers

Answer:

C

Step-by-step explanation:

The input is the value of x. Substitute x = 4 into y for output

y = 3(4)² - 2(4) + 5 = 3(16) - 8 + 5 = 48 - 8 + 5 = 45

Thus the output is 45 → C

Write the equation for each graph below.

Answers

Answer:

The first one is 3x+1

The second one is 3/4x - 2

Step-by-step explanation:

Look where the line intersects then count the dots to where the next point is.

Is 9.78778777... a rational or irrational number?

Answers

The answer is - Irrational

The given decimal number 9.78778777... is non-terminating and non-recurring it is an irrational number.

The given decimal number is 9.78778777....

We need to check whether the given decimal number is a rational or irrational number.

What are rational and irrational numbers?

Rational numbers: Rational numbers are in the form of p/q, where p and q can be any integer and q ≠ 0. This means that rational numbers include natural numbers, whole numbers, integers, fractions of integers, and decimals (terminating decimals and recurring decimals).

Irrational numbers: Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.

So, from the definition of rational and irrational numbers, we can say the given decimal number 9.78778777... is irrational.

Since the given decimal number 9.78778777... is non-terminating and non-recurring it is an irrational number.

To learn more about rational and irrational numbers visit:

https://brainly.com/question/3386568.

#SPJ2

9
.
ABCD is a rhombus.
Find each angle.
Reason:

Plz answer ASAP, thank you

Answers

Answer:

Step-by-step explanation:

I sympathize. The question is not very clear: you don't know what A and B really are (I mean which vertex).

However it is a rhombus, and you are to assume that B follows A. So put A anywhere and make B follow it. They are supplementary which means they add to 180 degrees. All rhombi have that property.

A + B = 180

A/B = 2/1

Cross Multiply the second equation

A = 2*B

Put 2B into the first equation.

2B + B = 180         Combine the left terms

3B = 180                Divide both sides of the equation by 3

B = 180 / 3

B = 60

B = 60

A = 180 - 60 = 120

Label the two acute angles as 60 and the two obtuse angles as 120.

Acute: means less than 90

Obtuse: means more than 90

Kathy has $50 in her bank account right now. After three
days she had $35 left. What is her rate of change per day?
Think about if she is making or spending money. Just write
the number.

Answers

Answer:

$5

Step-by-step explanation:

To learn more, go to this website on public health C. Then answer the following question.
What are some issues that you consider to be related to public health? List them and explain your reasons.​

Answers

Answer:

Answers will vary but might address the following:

garbage disposal and recycling

sex education in schools

nutritious food supply in schools

Pls help I need this done soon and I suck at math

Answers

Answer: 4.5

Hope this helps :)

Other Questions
the questions on a multiple-choice test each have 4 answer choices. Describe a model that you could use to simulate the outcome of guessing the correct answer to a 100 questioned test A clear, pure liquid sample is brought into the lab and exposed to an electrical current. Different gases areproduced on each of the electrodes. The sample is -a. an elementb. an alloyc. a compoundd. a polymer Which equation represents a graph with a vertex at (1, -6)?A. y=3x2+6x3B. y=3x2-6x-3C. y=3x2-8x-1D. y=3x2-3x-6 Think of a successful business and research the founding of that business. What successes could you learn about from that business? which element has chemical properties that are most similar to potassium? a. calcium b. cesium c. nitrogen d. sulfur Please help really quick, I'll give Brainliest. You only have to do Q1, but more is welcome. explain the major innavotions made from the establishment of abacus which number line shows the solutions to n > 0 If I want to control the aperture and I want the camera to control the shutter speed which setting on the mode dial is most appropriate?a)AVb) TVc) Md) Psince this is my last question im giving 100 points and brainliest What is the slope of this line?y= -5/3x + 5 Drugs used to treat ADHD and depression which boost attention and energy are called? Why does kazakhstan have so many un-populated areas? A student said, To find the value of 109.26, I can divide 1,092 by 60.Do you agree with this statement? Explain your reasoning.Calculate the quotient of 109.26 using any method of your choice.Should I do what can 6 go into 1,10,109? or just do the whole thing? (But not the 2 yet) Where did the 45% come from. It states 55% in question 3x^ 2 +6x+9=factor Mrs. Lodge is having new floor tiles installed in her kitchen. She is paying the flooring company $170.25 for the tiles and an installation fee of $3.78 per square foot. She receives a total bill of $586.05 for the job.Which equation could be used to find the number of square feet (x) of tile Mrs. Lodge is having installed? A. 170.25 3.78x = 586.05 B. 170.25 + 3.78x = 586.05 C. 170.25x + 3.78 = 586.05 D. 170.25x 3.78 = 586.05 Two soccer players run toward each other. One player has a mass of 85 kgand runs west with a speed of 8 m/s, while the other has a mass of 105 kgand runs east with a speed of 7 m/s. What is the total momentum of thesystem made up of the two players? I need help with this practice sheetI'm confused with this PLEASE HELP I HAVE A TIME LIMIT I WILL GIVE BRAINLIEST AND 5 STARS show your work rex mixed x liters of fruit syrup with y liters of water to make fruit punch three times the number of liters of water he used is equal to 6 more than twice the number of liters of fruit syrup he used the total number of liters of syrup and water he mixed was 7 liters what is the number of liters of fruit syrup and water that rex added to make the fruit punch What is asexual reproduction?List the various and describe four types of asexual reproduction.What is sexual reproduction?Why is sexual reproduction beneficial?