Converting 24min to Hours: True or False?

  • Thread starter Thread starter roza-chan
  • Start date Start date
Click For Summary

Homework Help Overview

The discussion revolves around converting 24 minutes into hours, focusing on the calculations involved and the accuracy of those calculations.

Discussion Character

  • Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to convert minutes to hours using two different methods, questioning the accuracy of their calculations and the reason for discrepancies in results.

Discussion Status

Participants are providing feedback on the calculations, noting errors in the original poster's approach and discussing the importance of not rounding intermediate results. There is a recognition of common mistakes in mathematical reasoning.

Contextual Notes

Participants are addressing the implications of rounding and the correct value of fractions in the conversion process. The original poster expresses confusion about the differing results from their calculations.

roza-chan
Messages
10
Reaction score
0
well i was wondering which of these are true and why so please help me out
24min=?h
1 min= 1/60h
.'. 24 * 1/60 =24/60 =0.4

or

1 min=1/60h
1/60=0.016161616
~0.02 (i took what is close to it)
24 * 0.02=0.48

i myself think that the second one is false but y does the number change so much??where did i go wrong?
 
Physics news on Phys.org


You seem to have miscalculated the value for [tex]\frac{1}{60}[/tex].

[tex]\frac{1}{60} = 0.01666 ...[/tex]
 


Still, it's fairly obvious where the 'error' is coming from. You've rounded the number you are multiplying by. Also as fedaykin said, you got the value for 1/60 wrong.

I suspect that it's just the 'D'OH!' moment, I have them all the time.
 


Never ever round down intermediate results.

Now you even know why.
 


It's amazing that someone with green hair can be so wise!:cool:
 


thanx everyone thank u soo much
 

Similar threads

Prove that the statement is true or false
  • · Replies 18 ·
Replies
18
Views
2K
Different sunset times due to elevation ##h## at a point on the Earth
  • · Replies 13 ·
Replies
13
Views
2K
Calculating Uncertainty when Converting Time
  • · Replies 3 ·
Replies
3
Views
5K
Comp Sci How do "min" and "hour" get their values in this C++ code?
  • · Replies 15 ·
Replies
15
Views
2K
Are these statements true or false? Prove....
  • · Replies 9 ·
Replies
9
Views
3K
High School Energy Harvesting: Calculating kWh from Motorway Traffic
  • · Replies 4 ·
Replies
4
Views
2K
Predicate logic - true or false formulae
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad A true or false statement concerning condition number of a matrix
  • · Replies 2 ·
Replies
2
Views
2K
Python I writing a program telling time on Python
  • · Replies 3 ·
Replies
3
Views
2K
Word problem to understand the large size of Avogadro's Number
  • · Replies 2 ·
Replies
2
Views
2K