Please tell me if I did these correctly~TIA

G

Guest

Guest
I'm sorry if these don't come out correctly maybe next time I will know how to do it correctly...


-9 / -3 + 4 x -1/4 - 20 / 5
3 + -1 - 4
2 - 4 = -2

-----------------------------------------------

14 + 3[(5 - 1)(8 - 6) - 2] + 1
14 + 3[(4 x 2) - 2] + 1
14 + 3[ (8) - 2) + 1
14 + 3 x 6 + 1
14 + 18 + 1 = 33

--------------------------------------------------

1/3 [(-18 + 3) + (5 + 7) / -4
1/3 [-15 + 12 / -4]
1/3 x [-15 + -3)
1/3 x -18 = -6

----------------------------------------------------

80 x 1/2 + 35
-10 + 25

40 + 35
15

75
15

= 5
 
They all look good.
Your only capital crime is in using x for multiplication. Always use *
When you get to algebra 4xy won't mean 4 times y, it will mean 4 times x times y but 4*y will always mean 4 times y.
 
Thanks~

Thanks so much to both of you!! I read other posts on Algebra and it seems like a foreign language. I don't think I will ever understand all of it....Now I'm having trouble trying to remember the rules of negative and postive numbers...Hopefully I will finally, yes, I said finally pass the tests that I have to pass.
 
Hey~

I shouldn't ask this question but I'm gonna :oops: why isn't
-5 + -3 = -8
AND if it is correct why did my teacher mark it wrong? I'm so confused!
Am I posting this in the wrong forum since it's so easy for you guys.
I feel so dumb.
 
dont feel dumb! You know what your doing...

well thats weird that your teacher marked it wrong!! because that is correct.. go and talk to her and possible it was just a mistake!

Good Luck
 
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