Simple Math

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"Mathematicians have devised a standard order of operations for calculations involving more than one arithmetic operation.
Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right."

source is math goodies.com
 
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I got 320 initially going left to right.

Seeing the rules, I now see the answer of 20 as well.

I knew rule #1 & 3, but didn't know #2
 
Order of operations = 20. Sucks since I had to take algebra 3 time to get out of college!! Really...I did.
 
1.)
cotθ cosθ / cscθ = X
2.)
41! / 38! 3! = X
3.)
1/x=v(1/y+1/z) (solve for x)

I DARE YOU!!!
 
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20 following the order of operators.

In Canada we're taught it as BEDMAS (Brackets then Exponent then Division and/or Multiplication then Addition and/or Subtraction).

AK
 
In Aus. I was taught BODMAS Brackets, Other, Division, Multiplication, Addition, Subtraction. So X = 20

Joe S, I DARE :smile:

1.) X = Cos² θ

2.) X = 383760

3.) x = yz/v(z+y) I just realised that normally when you write/evaluate an equation like this you always work out the top and bottom and then do the division last. Exception to the rule or brackets implied?

When I was programming I used brackets in equations to make sure the equations came out right as computers use the same maths rules.

How's this, my first post and it's a maths question/answer. :mad:
 
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