anonymous
  • anonymous
need help!!! Medalss!!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
simplify -1/5 - 2/3
anonymous
  • anonymous
all you would do is get a caculator and type in -1/5 - 2/3 and you will get your answer..
anonymous
  • anonymous
alrite hang on tell me if you get the same thing

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anonymous
  • anonymous
okkayy.. lol
anonymous
  • anonymous
-0.86666666666666666666666666666667
anonymous
  • anonymous
lol
anonymous
  • anonymous
did you get the same thing
anonymous
  • anonymous
yes i did.. lol
anonymous
  • anonymous
but I dont thinks thats right
anonymous
  • anonymous
It is -0.86 you take the rest of the numbers off.. lol
anonymous
  • anonymous
oh how would I put that in a fraction tho :)
anonymous
  • anonymous
you would take -0.86 and divide that by 100 and then tell me what you get ?!
anonymous
  • anonymous
0.0086
anonymous
  • anonymous
i just did it and i got 0.0086
anonymous
  • anonymous
so when does it become a fraction
anonymous
  • anonymous
then take that and put 86 over 100 and that's your answer (:
anonymous
  • anonymous
is it right?
anonymous
  • anonymous
umm idk because my cousin got \[-\frac{ 13 }{ 15 }\]
anonymous
  • anonymous
hmmmm... not sure then sorry
anonymous
  • anonymous
its okay thnx for trying
anonymous
  • anonymous
your welcome (:
anonymous
  • anonymous
wbu tomo do you know how to do this problem
anonymous
  • anonymous
Find the greatest common denominator and simplify
anonymous
  • anonymous
-1/5 - 2/3 multiply the first term by 3/3. you need a common denominator to add or subtract fractions. in this case the least common denominator is 15 (-1/5)*(3/3) = -3/15 multiply the second term by 5/5 (2/3)*(5/5) = 10/15 \[\frac{-3}{15}-\frac{10}{15} = \frac{-3-10}{15} = \frac{-13}{15}\]
anonymous
  • anonymous
alright hb \[\frac{ 8k-12h }{ 4 }\]
anonymous
  • anonymous
pull out a 4 out of the numerator.
anonymous
  • anonymous
-4kh
anonymous
  • anonymous
??
anonymous
  • anonymous
8-12 is - 4?
anonymous
  • anonymous
oh nvm its 2k-3h
anonymous
  • anonymous
good catch.
anonymous
  • anonymous
duuhh immma dork sometimes
anonymous
  • anonymous
now you have \[\frac{4*(2k-3h)}{4} = \frac{4}{4}*(2k-3h) = ?\]
anonymous
  • anonymous
1kh
anonymous
  • anonymous
k and h are not multiplied they are being subtracted so you have (4/4)(2k-3h) 1*(2k-3h) (2k-3h) you cannot simplify further 2k-3h does not equal 1kh suppose you have k = 2, h = 3 2k-3h = 2*2-3*3 = 4-9 = -5 1kh = 1*2*3 = 6 // clearly not -5
anonymous
  • anonymous
okay I have no idea how to solve this one "a bowl contains 4 red chips, 3 blue chips, and 9 green chips. your choose one a random" Find P (not red) now how would I solve this?
anonymous
  • anonymous
P(not x) = 1-P(x)
anonymous
  • anonymous
wait how did you figure that
anonymous
  • anonymous
you have a total probability of 1. therefore the P(x) is something then the probability of not x is 1 minus the probability of that something.

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