My Math Forum I need help with an approximation question

 Probability and Statistics Basic Probability and Statistics Math Forum

 July 15th, 2015, 04:41 PM #1 Newbie   Joined: Jul 2015 From: United States Posts: 14 Thanks: 0 I need help with an approximation question As you can see, I got the problem wrong. What I don't understand is the explanation. Where did 1.04 and 1.06 and 0.9 come from, I just want to be able to understand what is necessary to do with a problem like this. Thanks in advance.
 July 15th, 2015, 05:17 PM #2 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,913 Thanks: 1113 Math Focus: Elementary mathematics and beyond An increase of four percent is 104% * original value. 104% = 1.04. Thanks from littleredstar
July 15th, 2015, 10:05 PM   #3
Newbie

Joined: Jul 2015
From: United States

Posts: 14
Thanks: 0

Quote:
 Originally Posted by greg1313 An increase of four percent is 104% * original value. 104% = 1.04.
And I guess the same with 9% increasing to 90% making it 0.9. Awesome, thank you so much!

 July 16th, 2015, 05:30 AM #4 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,261 Thanks: 896 NO. An "increase of 9%" is a change to 109% or 1.09. A decrease by 10% would be 100- 10= 90% or 0.90. (I consider that a very confused question. They say "three transactions" but do not say that they were consecutive in the given order with the entire amount rather than three simultaneous transactions with part of the 20000. Also they start saying "you make three transactions" but end asking "what is the value of his money"!) Thanks from greg1313

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post airliner Differential Equations 0 November 15th, 2014 07:35 AM kyry Calculus 2 January 31st, 2014 10:47 PM zaidalyafey Number Theory 15 March 25th, 2013 10:39 PM butabi Math Software 1 September 14th, 2011 02:54 PM malaguena Number Theory 8 February 10th, 2011 05:59 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top