1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mashcka [7]
3 years ago
5

analog clock is gaining 3 minutes every hour, You set it at 6 pm on Saturday, when will it show the correct time

Mathematics
1 answer:
Ivanshal [37]3 years ago
3 0

This is tricky.  Fasten your seat belt.  It's going to be a boompy ride.

If it's a 12-hour clock (doesn't show AM or PM), then it has to gain
12 hours in order to appear correct again.

How many times must it gain 3 minutes in order to add up to 12 hours ?

(12 hours) x (60 minutes/hour) / (3 minutes) = 240 times

It has to gain 3 minutes 240 times, in order for the hands to be in the correct positions again. Each of those times takes 1 hour.  So the job will be complete in 240 hours  =  <em>10 days .</em>

Check:

In <u>10</u> days, there are <u>240</u> hours.
The clock gains <u>3</u> minutes every hour ==> <u>720</u> minutes in 240 hours.
In 720 minutes, there are  720/60 = <u>12 hours</u>       yay !
_________________________________

If you are on a military base and your clocks have 24-hour faces,
then at the same rate of gaining, one of them would take 20 days
to appear to be correct again.
_________________________________

Note:
It doesn't have to be an analog clock.  Cheap digital clocks can
gain or lose time too (if they run on a battery and don't reference
their rate to the 60 Hz power that they're plugged into).


You might be interested in
Drag the values to order them from least to greatest, with the least at the top. Item 2 moved to position 3. 79 − − √ + 63 − − √
Nonamiya [84]

\sqrt{63} \\ \\ \sqrt{79}  \\ \\ \sqrt{143} \\ \\ 4\pi

<h2>Explanation:</h2>

As I understand, in this exercise, we have the following numbers:

\text{Number 1}=\sqrt{79} \\ \\ \text{Number 2}=\sqrt{63} \\ \\ \text{Number 3}=\sqrt{143} \\ \\ \text{Number 4}=4\pi

By using calculator, let's convert those numbers into decimal form:

\text{Number 1} \approx 8.88\\ \\ \text{Number 2} \approx 7.93 \\ \\ \text{Number 3} \approx 11.96 \\ \\ \text{Number 4} \approx 12.56

So arranging from least to greatest we have:

\text{Number 2} \\ \\ \text{Number 1} \\ \\ \text{Number 3} \\ \\ \text{Number 2}

Put another way:

\sqrt{63} \\ \\ \sqrt{79}  \\ \\ \sqrt{143} \\ \\ 4\pi

7 0
2 years ago
CAN SOMEONE PLEASE EXPLAIN WHY THE ANSWER FOR THIS IS 4N+15. THIS IS 10 MINUTES PAST DUE!!! TAKE 20 POINTS​
Oduvanchick [21]
The first part of the expression 4n is because n is the amount of almond trees and to find the walnut trees, you need to multiply the number of almond trees (n) by for (4n). you would also add 15 because it says he has 15 more than 4 times as many walnut trees.

so here's the breakdown of the sentence:

Daquan has 15 more than (15 +) 4 times as many (4n) walnut trees in his orchard as he has almond trees.

hopefully this makes sense! have a nice day
6 0
2 years ago
What is 21 times 6<br> i need to know it <br> is really important
DanielleElmas [232]

Answer:

126

Step-by-step explanation:

21

x 6

___

126

6 0
3 years ago
How do you do this question?
likoan [24]

Answer:

a) -7/9

b) 16 / (n² + 15n + 56)

c) 1

Step-by-step explanation:

When n = 1, there is only one term in the series, so a₁ = s₁.

a₁ = (1 − 8) / (1 + 8)

a₁ = -7/9

The sum of the first n terms is equal to the sum of the first n−1 terms plus the nth term.

sₙ = sₙ₋₁ + aₙ

(n − 8) / (n + 8) = (n − 1 − 8) / (n − 1 + 8) + aₙ

(n − 8) / (n + 8) = (n − 9) / (n + 7) + aₙ

aₙ = (n − 8) / (n + 8) − (n − 9) / (n + 7)

If you wish, you can simplify by finding the common denominator.

aₙ = [(n − 8) (n + 7) − (n − 9) (n + 8)] / [(n + 8) (n + 7)]

aₙ = [n² − n − 56 − (n² − n − 72)] / (n² + 15n + 56)

aₙ = 16 / (n² + 15n + 56)

The infinite sum is:

∑₁°° aₙ = lim(n→∞) sₙ

∑₁°° aₙ = lim(n→∞) (n − 8) / (n + 8)

∑₁°° aₙ = 1

8 0
2 years ago
A converging lens of focal length 5 cm is placed at a distance of 20
lesya [120]

The object should be placed 20/cm from the lens so as to form its real image on the screen

<h3>Mirror equation</h3>

The mirror equation is given according to the expression below;

1/f = 1/u + 1/v

where

f is the focal length

u is the object distance

v is the image distance

Given the following parameters

f = 5cm

v = 20cm

Required

object distance u

Substitute

1/5 = 1/u +1/20

1/u = 1/5-1/20
1/u = 3/20

u = 20/3 cm

Hence the object should be placed 20/cm from the lens so as to form its real image on the screen

Learn more on mirror equation here; brainly.com/question/27924393

#SPJ1

4 0
1 year ago
Other questions:
  • Combine like terms to simplify the expression. 2x+4y-7x+10y+8
    13·1 answer
  • Help me in question 17. Please thanks
    10·2 answers
  • Compare the two fractions using &lt;, &gt;, or =. 6/12 ___ 1/2
    11·2 answers
  • The foot, the pound, and the gallon are all example of ______ units. This system of measurement was first devised in England
    11·1 answer
  • If f(x) = 4x - 3, then f '(x) is<br>​
    10·1 answer
  • What is the sum of the geometric series 4∑ t=1 6t-1​
    13·1 answer
  • Helpp plsss I neeed to finish this test ASAP plssssssss thank youu helpp me with this question
    9·1 answer
  • The price per share of a professional sports team increased from $58 to $65 over the past year. What is the stock’s percent incr
    6·1 answer
  • Find the zeros of f(x)=x^2+10x
    12·1 answer
  • A furry has 3877 UwU masks and wants to share them equally upon her 36 Furry Friends how many masks will The Furry have Left?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!