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*Solved*

ZombiemamboZombiemambo Registered User regular
edited January 2009 in Help / Advice Forum
First of all, no, this isn't for homework (anymore). I have the answer, I just don't know how I get that answer. The equasion is as follows:
-0.9 (3.5 - 5.2)
the answer is supposedly 1.53, but I'm getting 2.07 every time. However, if I do
-0.9 (5.2 - 3.5)
it comes out as 1.56.

What gives?

JKKaAGp.png
Zombiemambo on

Posts

  • blanknogoblanknogo Registered User regular
    edited January 2009
    mmm order of operations? Should go Brackets, Exponents, Division, Multiplication, Addition, Subtraction (BEDMAS)...

    For your question... -0.9 (3.5 - 5.2)... the order goes:

    Brackets:
    3.5 - 5.2 = -1.7

    Multiplication:
    -0.9 (-1.7) = 1.53

    blanknogo on
  • starlanceriistarlancerii Registered User regular
    edited January 2009
    What is (3.5 - 5.2)?

    What is (5.2 - 3.5)?

    starlancerii on
  • ZombiemamboZombiemambo Registered User regular
    edited January 2009
    blanknogo wrote: »
    mmm order of operations? Should go Brackets, Exponents, Division, Multiplication, Addition, Subtraction (BEDMAS)...

    For your question... -0.9 (3.5 - 5.2)... the order goes:

    Brackets:
    3.5 - 5.2 = -1.7

    Multiplication:
    -0.9 (-1.7) = 1.53

    How come I keep getting -2.3, not -1.7? Probably because I'm fucking retarded.

    Alright, thanks!

    Zombiemambo on
    JKKaAGp.png
  • MKRMKR Registered User regular
    edited January 2009
    blanknogo wrote: »
    mmm order of operations? Should go Brackets, Exponents, Division, Multiplication, Addition, Subtraction (BEDMAS)...

    For your question... -0.9 (3.5 - 5.2)... the order goes:

    Brackets:
    3.5 - 5.2 = -1.7

    Multiplication:
    -0.9 (-1.7) = 1.53

    How come I keep getting -2.3, not -1.7? Probably because I'm fucking retarded.

    Alright, thanks!

    You might need a review of integers.

    Though it looks like you're subtracting in a bit of a random way. The only way I could see you getting -2.3 is if you subtracted 2 from 5 in the ones place, and 3 from 5 in the tens.

    edit: I'm getting places mixed up because I'm tired.

    MKR on
  • ZombiemamboZombiemambo Registered User regular
    edited January 2009
    MKR wrote: »
    blanknogo wrote: »
    mmm order of operations? Should go Brackets, Exponents, Division, Multiplication, Addition, Subtraction (BEDMAS)...

    For your question... -0.9 (3.5 - 5.2)... the order goes:

    Brackets:
    3.5 - 5.2 = -1.7

    Multiplication:
    -0.9 (-1.7) = 1.53

    How come I keep getting -2.3, not -1.7? Probably because I'm fucking retarded.

    Alright, thanks!

    You might need a review of integers.

    Though it looks like you're subtracting in a bit of a random way. The only way I could see you getting -2.3 is if you subtracted 2 from 5 in the ones place, and 3 from 5 in the tens.

    edit: I'm getting places mixed up because I'm tired.

    Actually that's what I did, I went upstairs and fixed it.

    God I feel dumb.

    Zombiemambo on
    JKKaAGp.png
This discussion has been closed.