My Math Forum Can't get the same answer as example

 Algebra Pre-Algebra and Basic Algebra Math Forum

 February 28th, 2017, 12:38 AM #1 Newbie   Joined: Feb 2017 From: england Posts: 3 Thanks: 0 Can't get the same answer as example I am trying to follow an example, but I am unable to get the same results. I was under the impression that when you have two numbers next to each other i.e. ai would mean A multiplied by I. = ((65000/10000)1/4-1)*100 = (6.5 1/4 -1)*100 = (1.5967-1)*100 = 59.67% but I get 1.6250 when I times 6.5 by 1/4 (6.5*0.25 = 1.6250) and I'm unable to get the 1.5967 when I do it. Where am I going wrong? Any help appreciated. Last edited by skipjack; February 28th, 2017 at 04:47 AM. Reason: to add missing opening parenthesis
 February 28th, 2017, 12:52 AM #2 Senior Member   Joined: Feb 2016 From: Australia Posts: 1,084 Thanks: 364 Math Focus: Yet to find out. What is the original question exactly? $\displaystyle \left( \left( \dfrac{65000}{10000} \cdot \dfrac{1}{4} \right) - 1 \right) * 100$ ? or $\displaystyle \left( \dfrac{65000}{10000} \cdot \left( \dfrac{1}{4} - 1 \right) \right) * 100$ ? or something else? Don't forget your order of operations (BEDMAS/BODMAS). And pay attention to your brackets!
 February 28th, 2017, 01:32 AM #3 Newbie   Joined: Feb 2017 From: england Posts: 3 Thanks: 0 $\displaystyle =((f/s)1/y-1)*100$ spoken, it would be f (65000) divided by y (10000) 1/y is meant to be a fraction (1/4). What I'm trying to use is the below method 2 part 4: How to Calculate an Annual Percentage Growth Rate: 7 Steps Last edited by skipjack; February 28th, 2017 at 04:55 AM.
 February 28th, 2017, 04:53 AM #4 Global Moderator   Joined: Dec 2006 Posts: 16,919 Thanks: 1253 The $1/y$ should be an exponent: $6.5^{1/4} - 1 = 1.5967... - 1 = 0.5967$ to 4 decimal places.
February 28th, 2017, 06:06 AM   #5
Newbie

Joined: Feb 2017
From: england

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Quote:
 Originally Posted by skipjack The $1/y$ should be an exponent: $6.5^{1/4} - 1 = 1.5967... - 1 = 0.5967$ to 4 decimal places.
I would never have gotten that;
thank you greatly skipjack for that.

Last edited by skipjack; February 28th, 2017 at 07:26 AM.

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