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Word Problems: How to set them up into solvable equations?  TOPIC_SOLVED

I have trouble on word problems. :confused: Please help me on these two problems! I am just wondering how to put these into a solvable equation. Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is now. How old are they now? For Larry's sister, her age now is x. And ...
by Hikari_Dreamer_12
on Thu Jul 22, 2010 12:10 am
 
Forum: Beginning Algebra
Topic: Word Problems: How to set them up into solvable equations?
Replies: 3
Views: 1282

Re:  TOPIC_SOLVED

For Larry's sister, her age now is x. And for Larry, his age now is x+8, and in 3 years it will be 2x. Is this correct? Yes. And also, in three years his age will be (x + 8) + 3. Can you see the equation to solve? Thanks. I solved this equation! 8-) It seems pretty easy now. :clap: Rocky spends a t...
by Hikari_Dreamer_12
on Thu Jul 22, 2010 8:10 pm
 
Forum: Beginning Algebra
Topic: Word Problems: How to set them up into solvable equations?
Replies: 3
Views: 1282

Finding Missing Angles of Parallelogram: What is x and y?  TOPIC_SOLVED

http://kib2.free.fr/geoPyX/parallelogram.png Angle A is (2y-5) and Angle D is (x+50). The exterior angle of Angle C is (3x+20). What is x and y? I am pretty confused with this one. I know that the opposite angles of a parallelogram equal each other, so Angle C is (2y-5). Angle C+the exterior angle ...
by Hikari_Dreamer_12
on Thu Jul 22, 2010 11:21 pm
 
Forum: Geometry
Topic: Finding Missing Angles of Parallelogram: What is x and y?
Replies: 3
Views: 5864

Number Line Inequalities  TOPIC_SOLVED

I have trouble on graphing the inequality on a number line. I can do simple ones like x<8 or something like that, but I can't do ones with the word "or" in it, such as "x>2 or x<3". Is there a site that explains this thoroughly? :confused: I would appreciate if you could help. :D
by Hikari_Dreamer_12
on Sat Jul 24, 2010 8:00 pm
 
Forum: Beginning Algebra
Topic: Number Line Inequalities
Replies: 1
Views: 877

Word Problems and Inequalities  TOPIC_SOLVED

How do you find the measure of an angle where its supplement is 10 degrees more than its complement? I don't want to do guess and check. If the angle is x and the complement is 90-x would the supplement be (90-x)+10? I tried doing x+90-x+10=180, but the x cancels out, so I have no idea what to do. ...
by Hikari_Dreamer_12
on Tue Aug 03, 2010 4:24 am
 
Forum: Beginning Algebra
Topic: Word Problems and Inequalities
Replies: 7
Views: 2615

Re:  TOPIC_SOLVED

:wave: Hello again! Thanks for helping me out so many times! I definitely appreciate it! :wink: How do you find the measure of an angle where its supplement is 10 degrees more than its complement? Work in steps: The supplement and complement are defined in terms of the angle, so pick a variable to s...
by Hikari_Dreamer_12
on Wed Aug 04, 2010 2:54 am
 
Forum: Beginning Algebra
Topic: Word Problems and Inequalities
Replies: 7
Views: 2615

Re:  TOPIC_SOLVED

The angle is x, the supplement angle is 90-x+10 What is the definition of a supplementary angle? Does your expression ("80 - x") fulfill this definition? Um, what do you mean by 80-x? Is it the supplementary angle of the 90-x+10 one? :?: I'm supposed to do something like this: {x: x>8 or ...
by Hikari_Dreamer_12
on Wed Aug 04, 2010 5:55 pm
 
Forum: Beginning Algebra
Topic: Word Problems and Inequalities
Replies: 7
Views: 2615

Re:  TOPIC_SOLVED

Um, what do you mean by 80-x? Sorry; I'd transposed the "minus" sign. You've provided an expression which simplifies to "100 - x". But what is the definition of a supplementary angle? So what expression would stand for "supplement of x"? Oh. So you mean 100-x=180-x? :i...
by Hikari_Dreamer_12
on Thu Aug 05, 2010 2:07 am
 
Forum: Beginning Algebra
Topic: Word Problems and Inequalities
Replies: 7
Views: 2615

Uncategorized Questions  TOPIC_SOLVED

Natural numbers can't be negative, so how do you solve something like this: {the natural numbers between -5 and 4} Would it be no solution or something? :confused: What is the equation for: two-thirds of the way from -11 to 5? And what is two thirds of the way from -11 and 5? How do you solve someth...
by Hikari_Dreamer_12
on Sun Aug 29, 2010 10:33 pm
 
Forum: Uncategorized
Topic: Uncategorized Questions
Replies: 3
Views: 1939

Re:  TOPIC_SOLVED

two-thirds of the way from -11 to 5? How far apart are these two numbers? (Hint: Subtract.) What is one-third of that distance? (Hint: Divide.) What then is two-thirds of the way from the lower number to the higher number? (Hint: Add.) Could you please clarify on the last two steps? Like how to do ...
by Hikari_Dreamer_12
on Mon Aug 30, 2010 1:00 am
 
Forum: Uncategorized
Topic: Uncategorized Questions
Replies: 3
Views: 1939
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