Top Posters
Since Sunday
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
cvasqu20 cvasqu20
wrote...
Go to Answer
Posts: 1
Rep: 0 0
11 years ago
1. problem solving using the substitution method
2. problem solving using the elimination method
3. solve x-2= -3x
4. using function notation write a slope intercept equation for the line containing (-2,-6) & (1,2)
5. find an equation of a line containing (-2,-3) parallel to 5x-4y=20 and then pependicular using same equation and coords
6. problem solving a 2 rate problem and a 3 rate problem

thanks!
Read 691 times
2 Replies
Replies
Answer accepted by topic starter
RondieRondie
wrote...
#1
Posts: 2
Rep: 0 0
11 years ago
Sign in or Sign up in seconds to unlock everything for free
This verified answer contains over 220 words.
1

Related Topics

wrote...
#2
11 years ago
1. Example using substitution: X+Y=10, 3X+7Y=38. You can substitute Y=10-X into the second equation. This will give you 3X+7(10-X)=38. 4X=32 and X=8 so Y=2.

2. Example using elimination: X+Y=10, 3X+7Y=38. Multiple the first equation by 3. Then, 3X+3Y=30. Subtract the two equations to get 4Y=8 so Y=2. Then X=8.

Hope this helps!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1266 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 61
  
 327
  
 706
Your Opinion
Which country would you like to visit for its food?
Votes: 204
Previous poll results: Do you believe in global warming?