My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
January 18th, 2012, 11:56 PM   #1
Member
 
Joined: Jan 2012

Posts: 33
Thanks: 0

Text exercise

The Mars rover Spirit landed on January 3, 2004.
Just over 1 yr later, on January 14, 2005, the
Huygens probe landed on Titan (one of Saturnís
moons). At their closest approach, the distance
from the Earth to Saturn is 29 million mi more than
21 times the distance from the Earth to Mars. If the
distance to Saturn is 743 million mi, what is the
distance to Mars?


Can somebody give me an answer? I have few answers but I want to be sure.

I understand equations and etc. but when it comes to text exercises I don't understand them...Does it mean I'm not for math?
thinkfast is offline  
 
January 19th, 2012, 12:30 AM   #2
Global Moderator
 
greg1313's Avatar
 
Joined: Oct 2008
From: London, Ontario, Canada - The Forest City

Posts: 7,930
Thanks: 1124

Math Focus: Elementary mathematics and beyond
Re: Text exercise

Quote:
Does it mean I'm not for math?
No, it does not mean that.

The distance to Mars is (743 - 29)/21 = 34 million miles. Do you see how I got the expression on the left-hand side of that equation?
greg1313 is online now  
January 19th, 2012, 02:20 AM   #3
Member
 
Joined: Jan 2012

Posts: 33
Thanks: 0

Re: Text exercise

Thank you for the answer. I hope someday I'll do math like you


Could you help with the last one?

Find three consecutive even integers where the sum of triple the first and twice the second is eight more than four times the third.


The English is the second my language. I know English well, but I need to get used to this kind of exercises. In my language there are no good books about math.
thinkfast is offline  
January 19th, 2012, 02:23 AM   #4
Global Moderator
 
greg1313's Avatar
 
Joined: Oct 2008
From: London, Ontario, Canada - The Forest City

Posts: 7,930
Thanks: 1124

Math Focus: Elementary mathematics and beyond
Re: Text exercise

Here's a start: 3a + 2(a + 2) = 4(a + 4) + 8. Do you see I arrived at that?

What is your first language?
greg1313 is online now  
January 19th, 2012, 03:07 AM   #5
Newbie
 
Joined: Jan 2012

Posts: 3
Thanks: 0

Re: Text exercise

My first language is Lithuanian. Well I'll need to try harder to learn math, I hope I'll learn it someday
And thank you for your answer. Very helpful forum.
den99 is offline  
January 19th, 2012, 03:09 AM   #6
Global Moderator
 
greg1313's Avatar
 
Joined: Oct 2008
From: London, Ontario, Canada - The Forest City

Posts: 7,930
Thanks: 1124

Math Focus: Elementary mathematics and beyond
Re: Text exercise

You're welcome. Good luck with your studies. (your English seems pretty good, by the way).
greg1313 is online now  
January 19th, 2012, 03:40 AM   #7
Member
 
Joined: Jan 2012

Posts: 33
Thanks: 0

Re: Text exercise

What about "Twice the second is eight more" what about 8 ?
thinkfast is offline  
January 19th, 2012, 05:43 AM   #8
Global Moderator
 
greg1313's Avatar
 
Joined: Oct 2008
From: London, Ontario, Canada - The Forest City

Posts: 7,930
Thanks: 1124

Math Focus: Elementary mathematics and beyond
Re: Text exercise

3a + 2(a + 2) = 4(a + 4) + 8
greg1313 is online now  
January 21st, 2012, 12:01 AM   #9
Senior Member
 
MarkFL's Avatar
 
Joined: Jul 2010
From: St. Augustine, FL., U.S.A.'s oldest city

Posts: 12,211
Thanks: 520

Math Focus: Calculus/ODEs
Re: Text exercise

See this topic for your other question.
MarkFL is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
exercise, text



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Needs help with this text book question roberto.salamanca Algebra 8 January 31st, 2014 10:45 AM
A challenging text for me. goedelite Real Analysis 1 September 7th, 2012 03:58 PM
A good PDE text abcdefgh Math Books 0 June 5th, 2012 06:36 AM
Looking for a more rigorous text shaunak84 Math Books 2 February 28th, 2012 08:07 PM
Text exercise thinkfast Algebra 17 January 25th, 2012 02:21 AM





Copyright © 2019 My Math Forum. All rights reserved.