Help a fellow techy with math?

[DarkBlade2117]

I've got 7 quick questions. Some are similar though any help is appreciated.

 

1. X^2=144

 

2. X:10 = 1000:X

Find X

 

3. A/B = 15/12; a+b/b = ?/12

 

4. 6(X+6)/15 = X-44/2

 

5. The second term in the proportion 5/201 = 10/402 is?

 

6. K+5/5(K-10) = 29/58

 

7. X^2 = 1936

 

Either I am just feeling stupid or maybe because it is late. Thanks

[vanished]

ok for 1 and 7 just do the square root...  <_<

[Godlygamer23]

For number 2, you need to find the common denominator for both.

 

Your equation would be this:

x/10=1000/x. The common denominator would be 10x. Multiply both sides by 10x, and the 10 on the left cancels, and the x on the right cancels.

[Chasem121]

I can't be bothered to copy paste them all, but use wolfram-alpha for help rather then asking forum members.

 

Here's the first two.

 

http://www.wolframalpha.com/input/?i=X^2%3D144

http://www.wolframalpha.com/input/?i=X%3A10+%3D+1000%3AX

[DarkBlade2117]

For number 2, you need to find the common denominator for both.

 

Your equation would be this:

x/10=1000/x. The common denominator would be 10x. Multiply both sides by 10x, and the 10 on the left cancels, and the x on the right cancels.

Awkward situation, this is a crossword puzzle for fudging math.  3 digit number, starts with 1 ends in 5.

[DarkBlade2117]

ok for 1 and 7 just do the square root...  <_<

I should of knew that, thanks for the refresher.

Edited January 13, 2016 by Godlygamer23
Removing double quote.

[GFC_]

1.) X = 12 (or -12)

2.) X = 100 (or -100)

3.) ? = 27

4.) X = 244

5.) Not sure what's being asked

6.) K = 21/4

7.) x = 44 (or -44)

[vanished]

 

5.) Not sure what's being asked

 

It's simpler than it looks; I think they mean 20/804

[GFC_]

It's simpler than it looks; I think they mean 20/804

I was thinking either they mean that or they mean 15/603

[DarkBlade2117]

 

1.) X = 12 (or -12)

2.) X = 100 (or -100)

3.) ? = 27

4.) X = 244

5.) Not sure what's being asked

6.) K = 21/4

7.) x = 44 (or -44)

 

Thanks!