A spinner is divided into many sections of equal size. Some sections are red, some are blue, and the remaining are green. The probability of the arrow landing on a section colored red is 9 over 20. The probability of the arrow landing on a section colored blue is 6 over 20. What is the probability of the arrow landing on a green-colored section?

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A spinner is divided into many sections of equal size. Some sections are red, some are blue, and the remaining are green. The probability of the arrow landing on a section colored red is 9 over 20. The probability of the arrow landing on a section colored blue is 6 over 20. What is the probability of the arrow landing on a green-colored section?

Mathematics
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hint: all of the probabilities must add to 1
does anyone understand this
so what does it mean?

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Other answers:

x = probability of landing on green \[\Large \frac{9}{20}+\frac{6}{20}+x = 1\] are you able to solve for x ?
no cause i have lots of math to do
ill try
first combine the fractions on the left side
tell me what you get
|dw:1438823076684:dw|
good
we have this now \[\Large \frac{15}{20}+x = 1\]
subtract 15/20 from both sides \[\Large \frac{15}{20}+x = 1\] \[\Large \frac{15}{20}+x-\frac{15}{20} = 1-\frac{15}{20}\] \[\Large x = 1-\frac{15}{20}\] \[\Large x = ???\]
idk
try to think of the "1" as "20/20"
14/20
try again
\[\Large x = 1-\frac{15}{20}\] \[\Large x = \frac{20}{20}-\frac{15}{20}\] \[\Large x = ??\]
5/20
correct, which reduces to 1/4
which is the answer
5/20 is equivalent to 1/4. I just reduced
it's always a good idea to reduce fractions as much as possible
that is nt an answer choice
what answer choices do they give you?
The probabilities are equal. The probability of landing on the open end is greater. The probability of landing on the closed end is greater. No conclusion can be made.
this was for a different problem
opps let me send the actual chocies
15 over 20 11 over 20 6 over 20 5 over 20
so it looks like they didn't reduce the fraction, which is odd
so just don't reduce 5/20
kk

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