Question

need help!!! Medalss!!!

Answer 1

simplify
-1/5 - 2/3

Answer 2

all you would do is get a caculator and type in -1/5 - 2/3 and you will get your answer..

Answer 3

alrite hang on tell me if you get the same thing

Answer 4

okkayy.. lol

Answer 5

-0.86666666666666666666666666666667

Answer 6

lol

Answer 7

did you get the same thing

Answer 8

yes i did.. lol

Answer 9

but I dont thinks thats right

Answer 10

It is -0.86 you take the rest of the numbers off.. lol

Answer 11

oh how would I put that in a fraction tho :)

Answer 12

you would take -0.86 and divide that by 100 and then tell me what you get ?!

Answer 13

0.0086

Answer 14

i just did it and i got 0.0086

Answer 15

so when does it become a fraction

Answer 16

then take that and put 86 over 100 and that's your answer (:

Answer 17

is it right?

Answer 18

umm idk because my cousin got \[-\frac{ 13 }{ 15 }\]

Answer 19

hmmmm... not sure then sorry

Answer 20

its okay thnx for trying

Answer 21

your welcome (:

Answer 22

wbu tomo do you know how to do this problem

Answer 23

Find the greatest common denominator and simplify

Answer 24

-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

\[\frac{-3}{15}-\frac{10}{15} = \frac{-3-10}{15} = \frac{-13}{15}\]

Answer 25

alright hb
\[\frac{ 8k-12h }{ 4 }\]

Answer 26

pull out a 4 out of the numerator.

Answer 27

-4kh

Answer 28

??

Answer 29

8-12 is - 4?

Answer 30

oh nvm its 2k-3h

Answer 31

good catch.

Answer 32

duuhh immma dork sometimes

Answer 33

now you have

\[\frac{4*(2k-3h)}{4} = \frac{4}{4}*(2k-3h) = ?\]

Answer 34

1kh

Answer 35

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

Answer 36

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?

Answer 37

P(not x) = 1-P(x)

Answer 38

wait how did you figure that

Answer 39

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.