The Purplemath Forums

Helping students gain understanding and self-confidence in algebra.

Skip to content

Need help- dimensional analysis  TOPIC_SOLVED

Simple patterns, variables, the order of operations, simplification, evaluation, linear equations and graphs, etc.
Post a reply

Need help- dimensional analysis

Postby shergo21 on Mon Sep 03, 2012 5:45 pm

Need in fraction form. Gas sells for 1.2 euros/liter . What is the price in US Dollars per gallon? (1 gal=3.785Liter & exchange rate $ to foreign $1.256 to .7965)
shergo21
 
Posts: 5
Joined: Mon Sep 03, 2012 5:43 pm
Top

Sponsor

Sponsor
 
Top

Re: Need help- dimensional analysis  TOPIC_SOLVED

Postby maggiemagnet on Tue Sep 04, 2012 10:45 pm

shergo21 wrote:Need in fraction form. Gas sells for 1.2 euros/liter . What is the price in US Dollars per gallon? (1 gal=3.785Liter & exchange rate $ to foreign $1.256 to .7965)

It's probably easier to look at the worked examples here than for me to try to explain it. Once you've studied the lesson in the link, then this will make sense: start with (euros)/L, and then use $/(euro) and L/gal to get things set up right. Then cancel and multiply whatever is left.
:clap:
User avatar
maggiemagnet
 
Posts: 249
Joined: Mon Dec 08, 2008 12:32 am
Top
Post a reply

Return to Pre-Algebra

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group. Color scheme by ColorizeIt!