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[1/3] / [1/4]   =

[1/3] * [4/1]  =

4/3 cups of water for each cup of milk

Proof  :   (1/4) (4/3)  = 1/3

a_n  = a₁  + d(n -1)

Where a_n   is the nth term you are looking for, a₁ is the first term, d is the common difference between terms and n is the index on a_n

Here's more : http://www.mathsisfun.com/algebra/sequences-sums-arithmetic.html

Thanks phil. That really helped me.

I do! My name is rarinstraw1195, just like the account on here!

I looked it up:  the SYMBOLS are 'called'   ...  'bars'   

I'm very fond of 'bars'  ......      

Questioning CPhill (though he is usually correct!)

I see how the PROBABILITY is 30 out of 1000 will get an MI.

That leaves 970   who MIGHT get an MI.   If the probability was 3% why wouldn't the odds be 3% of 970??    i.e.  29.1 to 970         Instead of 30 to 970??

Thanx    ~jc

96 in^2=3 X 32

           =6 X 16

           =12 X 8

           =24 X 4

           =48 X 2

           =1 X 96

Note  2 + 2/3   =  [3*2 + 2] / 3   =  [ 6 + 2] / 3  =  8/3

So....

8/3   - 2/3   = 6/3  = 2

This makes sense.......  [2 + 2/3 - 2/3]   should  = 2   !!!

Thanks!

This is a 6 - 8 -10  right triangle......so  6 + 8 + 10  =  24 yards  total

[You will need 8 more yards ]

This is known as an "absolute value" function...in this case the absolute value graph  of  3-x

Here's the graph :  https://www.desmos.com/calculator/iwhqljrm3d

567+11112-9990=1689

P ( 7 or 11)  = P(7) + P(11) - P(7 and 11)

P( 7 or 11) = 6/36  + 2/36  -  0/36 

P(7 or 11)  = 8/36   =  2 / 9  

[Note P(7 and 11)  = 0/36   because we can't roll a 7 and an 11 at the same time !! ]

It COULD   be    (3x)^2   or  3x^2        any more info?

Blue is    4 out of 8       4/8 x 400   =

Red is     3           8       3/8 x 400  =

Yellow is  1          8       1/8 x 400  =

Let x be the original number of boys and y be the original number of girls.....so

x / y  =  4/3   implies that   3x = 4y   implies that y  = (3/4)x

So......after 60 boys and  150 boys are added, we have

[x + 60] / [ (3/4)x + 150 ]  = 2 / 3   cross-multiply

3[x + 60] = 2 [ (3/4)x + 150]   simplify

3x + 180  = (3/2)x + 300  

(3/2)x = 120

x = 80   =  number of boys  originally

(3/4)(80)  = 60  = number of girls originally

Happy birthday

Thanks!

15/5 = 3

Re-check: 3*5 = 15

THE ANSWER: 5

Hope it helps

69*69 = 4761

Hope it helps!

sec (7pi/6)   =  1 / cos(7pi/6)  = 1/cos(210°)  = 1/ [-sqrt(3)/2]  = -2/sqrt(3)

Remember that 210°  is a 30°  reference angle in the 3rd quadrant and cos(30°)  = sqrt(3)/2.....but the cos is negative in the 3rd quadrant........

Happy birthday! Hope good wishes come to your life!

What parentheses???

33,645 is your answer.

ok thx :D