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3/4  =   3 divided by 4  =  .75

Well ....let's start with the first part    25/(-5)   =    -5     ok?    

then      -5 - (-10)  =  -5  + 10  =  5

11/12

You'll have to convert the fractions to fractions with a common denominator:

1 3/4  -  5/6  =    1  9/12  - 10/12       Now, '1' =  12/12   Yah?

So we can make this look like this:

12/12 + 9/12 -10/12   OK?

(12+9-10)/12 = 11/12       cool???

36.25/?  = 8.75     Multiply both sides of equation by ?

36.25 = 8.75 (?)    Divide both sides by 8.75

36.25/8.75  =   ?        Can you take it from there???

11  9/10    +  3  1/20 

First you will need to convert the fractions to fractions with the same denominator  ('common deominator')

11  18/20    +  3   1/20    =   11 + 3  +  18/20  + 1/20   =   14  19/20

Hi Shades :)

Multiply (6 cis 300o)(2 cis 30o) and express the answer in rectangular form. {nl} {nl} I know how to express this in polar form, but how do I put it into rectangular form?

\( (6 e^{300^{0}i})*(2e^{30^0i})\\~\\ =12e^{330^0i}\\~\\ =12(cos330+isin330)\\~\\ =12(cos30-isin30))\\~\\ =12(\frac{\sqrt3}{2}-i*\frac{1}{2})\\~\\ =6\sqrt3-6i\)

Just use the calculator associated with this forum

enter   849    then push the squre root key (it look like checkmark x) then '='

-12(2v-7) =  -12(2v) - (-12)(7)   =    -24v + 84

Out of every100 people, 20 now use public transport and 80 use cars.....

And of the 80 that use cars, 30% of these will switch to public transportation....thus.....the public transportation system will increase by 80 * .30  = 24 people out of  every 100

However, it will also lose 10% of its current ridership to cars = 20 X .10   = 2 people out of every 100

So, the percentage of people using public transportation in the long run will be

[20 + 24 - 2] / 100 =  42%

I'm a member on this website, but I want to keep this anonymous.

Guest, if you really like Hayley, then why are you posting a post pretending to kiss her?

Remember, this is a math forum.

If you like her, maybe become a message and PM her?

Just don't spam the boards!

(1/2)x=5/6        multiply both sides by the reciprocal of 1/2   = 2/1

x = (5/6) * 2/1     =  10/6    =  5/3

We want to chose 2 of the 5 red,  2 of the 7 green and 2 of the 6 yellow......so we have :

C(5,2) * C(7,2) * C (6,2)   = 3150 ways

a polygon

Wish i could help, but i dont know the answer. :(

Why don't you just google it?

Ummmmmmmmmm..................

you want it as a fraction?

1/4,3/16,9/32 Express the fractions in this set as equivalent fractions having the least common denominator.

1/4

(3+1)/16=4/16

(9-1)/32=8/32 so your equivalent fractions are:

1/4, 4/16, 8/32 and the LCD is 32

I think you have the answer already?