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6x(5+7)/47x2+3x3
i am using PEMDAS and coming up with 5 but the right answer according to the TEAS Test book that I am studying is 13. Please explain why that this is the right answer.
 one year ago
 one year ago
6x(5+7)/47x2+3x3 i am using PEMDAS and coming up with 5 but the right answer according to the TEAS Test book that I am studying is 13. Please explain why that this is the right answer.
 one year ago
 one year ago

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matt101Best ResponseYou've already chosen the best response.2
6x(5+7)/47x2+3x3 = 6x(12)/414+9 =1814+9 =13
 one year ago

drpeppergalBest ResponseYou've already chosen the best response.0
So if subtraction comes first instead of the addition you do it ?
 one year ago

matt101Best ResponseYou've already chosen the best response.2
It doesn't matter which order you do addition and subtraction since they are actually the same function (subtraction is like adding a negative number). In your equation above, you can do the addition step first, though note you are adding 9 to 14, not 14. You will get the same answer. Side note: similarly, multiplication and division are similar functions since division is like multiplying by a reciprocal.
 one year ago

drpeppergalBest ResponseYou've already chosen the best response.0
Thanks for your help math is not my best subject and this test is really import to me. PS. Now I feel kind of dumb because now that you explained all of that I am starting to remember. :)
 one year ago

matt101Best ResponseYou've already chosen the best response.2
No problem  I'm happy to help :)
 one year ago

drpeppergalBest ResponseYou've already chosen the best response.0
Girl05 P E D M A S is your order of operations
 one year ago

girl05Best ResponseYou've already chosen the best response.0
so its different from bedmas
 one year ago

drpeppergalBest ResponseYou've already chosen the best response.0
( ) exponents / x + 
 one year ago

drpeppergalBest ResponseYou've already chosen the best response.0
also know as Please Excuse My Dear Aunt Sally
 one year ago

girl05Best ResponseYou've already chosen the best response.0
but bedmas b=() e=exponents d=division m=multiplication a=addition s=subtraction so in pedmas what does the p stand for
 one year ago

matt101Best ResponseYou've already chosen the best response.2
BEDMAS and PEMDAS are exactly the same thing (B = brackets, P = parentheses). They rearrange the letters a bit to make fancy acronyms, but it doesn't make a difference. D and M can be performed in any order, and A and S can be performed in any order because, as I mentioned above, they are essentially the same operation.
 one year ago

girl05Best ResponseYou've already chosen the best response.0
matt101 thanks i didnt get the difference between p and b but now youve explained it to me so thanks
 one year ago

drpeppergalBest ResponseYou've already chosen the best response.0
I didn't know the b and p are the same thing.
 one year ago

matt101Best ResponseYou've already chosen the best response.2
Haha well I'm glad I was able to teach you both something new
 one year ago
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