+0  
 
0
687
3
avatar+59 

I used to not have problems with this, but summer happened.

 

I know the solutions, I just don't understand what i'm doing wrong.

Heres what I did:

-5+1*3-(7-23)

-5+1*3-(7-8)

-5+1*3-(-1)

-5+3-(-1)

-2-(1)

-3

(Actual solution is -1)

 

Next Problem:

(8-2)2+1/4[4-3(6-10)]

6^2+0.25[1(-4)]

36+0.25(-4)

36+(-1)

35

(Actual solution is 40)

 Sep 8, 2015

Best Answer 

 #2
avatar+129899 
+5

Notice in the first one, Thehumancalculator   that :

 

-5+3-(-1)  =

 

-5 + 3 + 1  =

 

-5 + 4  =

 

-1

 

 

Next one ;

 

(8-2)2+1/4[4-3(6-10)]  =

 

6^2  + (1/4)[ 4 - 3(-4)] =

 

6^2 + (1/4)[4 + 12]

 

6^2 + (1/4)[16] =

 

6^2 + 4  =

 

36 + 4  =

 

40

 

[Hey......I know all about that Summer thing....it used to happen to me, too !!...LOL!!!]

 

 

cool cool cool

 Sep 8, 2015
 #1
avatar+242 
0

remember PEMDAS

paraenthesis

exponents

multiplication

division

addition

subtraction

 Sep 8, 2015
 #2
avatar+129899 
+5
Best Answer

Notice in the first one, Thehumancalculator   that :

 

-5+3-(-1)  =

 

-5 + 3 + 1  =

 

-5 + 4  =

 

-1

 

 

Next one ;

 

(8-2)2+1/4[4-3(6-10)]  =

 

6^2  + (1/4)[ 4 - 3(-4)] =

 

6^2 + (1/4)[4 + 12]

 

6^2 + (1/4)[16] =

 

6^2 + 4  =

 

36 + 4  =

 

40

 

[Hey......I know all about that Summer thing....it used to happen to me, too !!...LOL!!!]

 

 

cool cool cool

CPhill Sep 8, 2015
 #3
avatar+59 
+5

Thanks Phil and Blondie

I do know the Please excuse my dear aunt sally, I just mix some stuff up ocassionally.

I really appeciate the help, luckily the assignment isn't due till 9/10/15. Only if my teacher put me in Geometry instead of Algebra honors :/

 Sep 8, 2015

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