English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

im refreshing myself on mind becuz i havent studied it in a year and i know my answer is dead wrong.


{ [ 18-2*6] - [40/ (17-9) ] } + {48- 13*3 + [ (50- 7* 5) +2 ] }

*means multiply
/ means divide

please help me

2007-08-15 13:19:50 · 15 answers · asked by eye-luv-jay 1 in Science & Mathematics Mathematics

15 answers

(18 - 12) - (40/8) + (48 - 39 + (50 - 35) + 2)

= 6 - 5 + 9 + 15 + 2

= 27

2007-08-15 13:26:29 · answer #1 · answered by forgetfulpcspice 3 · 2 3

{ [ 18-2*6] - [40/ (17-9) ] } + {48- 13*3 + [ (50- 7* 5) +2 ] }

Things in parentheses have to be done first. If there are no parentheses, then multiplication comes before addition.

So let's pick out some little things in parentheses that we'd have to do first:

18 - 2*6 = 18 - 12 = 6
40 / (17-9) = 40/8 = 5
50 - 7*5 = 50 - 35 = 15

Plugging those values in, in place of the original equation, we have:

{ [ 6] - [5] } + {48- 13*3 + [ (15) +2 ] }

More pieces we can now do:

6 - 5 = 1
48 - 13*3 = 48 - 39 = 9
15 + 2 = 17

Those become:

{ 1 } + {9 + [ 17 ] }

Which adds up to 27.

2007-08-15 13:26:07 · answer #2 · answered by McFate 7 · 0 2

{ [ 18-2*6] - [40/ (17-9) ] } + {48- 13*3 + [ (50- 7* 5) +2 ] }


(18 - 12) - (40/8) + (48 -39) + (50 - 35) + 2
6 - 5 + 9 + 15 + 2 = 27

2007-08-15 13:32:35 · answer #3 · answered by Norrie 7 · 0 1

I do believe the answer is 27.

If you follow the order of operations (PEMDAS) you would do anything inside parentheses first, then the exponents, then multiplication/division, and finally addition/subtraction.

So, look at the first part of the equation first:
[18-2*6]-[40/(17-9)]
Everything is in parentheses, so simplify working from the furthest in sets of parentheses first.
*17-9=8
*40/8=5

*2*6=12
*18-12=6

*6-5=1
So, therefore, the first part of the equation simplifes down to 1.

Now look at the second half of the equation:
(48-13*3+[(50-7*5)+2])
Again, start furthest in with the parentheses and work outward following the order of operations.
*7*5=35
*50-35=15
*15+2=17

Now, you are left with one large equation that looks like
48-13*3+17 . Follow your order of operations

*48-39+17
*9+17
*26
So, the second half of the equation simplifies to 26.

Now, just add both sides of the equation together and you get 26+1=27.

I hope this helps.

2007-08-15 13:39:02 · answer #4 · answered by Y-Knot 3 · 0 1

How about 27

{(18-12) - (40/8)} +{48 - 39 + (50 - 35) + 2}

(6 - 5) + 9 + 15 + 2 = 27

That is my thought.
I have not done that type of math for a loooooong time.
Good Luck

2007-08-15 13:31:44 · answer #5 · answered by blue81696 2 · 0 1

{ [18-12]-[40/8] } + {48-39 + [ (50-35) + 2]
{6-5} + {9 + (15+2) }
1 + 9 + 17
1 + 26
27

2007-08-15 13:31:28 · answer #6 · answered by Anonymous · 0 1

[ (18 - 12) - (40/8) ] + [48 - 39 + (50 - 35) +2]

= ( 6 - 5 ) + ( 9 + 15 + 2 )

= 1 + 26

= 27 *finaly answer*

2007-08-15 13:29:26 · answer #7 · answered by [H] [u] [n] [g] 1 · 1 2

{ [ 18-2*6] - [40/ (17-9) ] } + {48- 13*3 + [ (50- 7* 5) +2 ] }
{[18-12]-[40/8]}+{48-39+[50-35]+2}
{6-5}+{9+15+2}
1+9+17
27

2007-08-15 13:27:21 · answer #8 · answered by ptolemy862000 4 · 1 2

27

2007-08-15 13:28:57 · answer #9 · answered by lizi g 3 · 0 1

27

2007-08-15 13:27:25 · answer #10 · answered by awesome_jarrett7 2 · 0 1

fedest.com, questions and answers