Homework 4/14 « Ms. Krishnan’s Algebra Class

Homework 4/14

April 14, 2008 by mskrishnan

In case you forgot or lost it, tonight’s homework is just the following two problems:

Solve each system using elimination.

Add a comment to this post if you have a question!

Posted in homework | 9 Comments

on April 14, 2008 at 12:31 pm mskrishnan

Here’s a hint: you have to multiply both equations (by different numbers) to make the coefficients match up.
on April 14, 2008 at 7:42 pm emma7oo

10x-6y=12
-10x+20y=100
10x cancel out
-6y=12
20y=100
14y=-88
y= -6.28571429
i think i really didnt get this
on April 14, 2008 at 8:25 pm mskrishnan

emma:

you should have added 12 and 100 instead of subtracting, since they are both positive.
on April 14, 2008 at 8:55 pm 8monica0

10x=50
divide both sides by 10
and you get
x=5
N I DNt KNo F DIz RAYt BUh At LEASt I TRyED!=]
on April 14, 2008 at 10:31 pm mskrishnan

Monica:

Which problem is that for? I think that’s actually one from today’s classwork, not from the homework…
on April 15, 2008 at 4:38 pm emma7oo

ey monica gurl wat u doen im bored at home y kall me k
on April 15, 2008 at 7:24 pm 8monica0

00000pz………..mA BAd Mz K. wE WErE SUPpOSEd 2 COPY iT FROm THe HOMeWORk?!?!?!?
I THOUgHT wE HAd To MAKe ONe Up!WELl I GUeSs I HAd MOrE XTrA CREDIt 4 INvENTInG iT HuH?!?!?!?=]
on April 15, 2008 at 7:25 pm 8monica0

ZUp WIt Et EMmA
WELl EVEyTYm I KALl Yu yU NEVa ANSWEr!
on April 15, 2008 at 8:40 pm mskrishnan

Monica: My bad, I didn’t realize you were replying to the other post (called “welcome”). Make sure you click the reply button for the correct topic! But you still get the extra credit.