Mathematics
7 Online
OpenStudy (brucebaner):
help me easy math help me
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OpenStudy (brucebaner):
OpenStudy (nincompoop):
HOW EASY?
geerky42 (geerky42):
Well. \(\% = \dfrac{Option~2}{total~in~group~A}\times100\)
OpenStudy (brucebaner):
okay
OpenStudy (nincompoop):
THIS IS NOT EASY AT ALL! OTHERWISE YOU WOULD KNOW HOW TO DO IT IF IT WERE EASY, NO?
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geerky42 (geerky42):
from table, we can see that 106 chose Option 2.
What about total? How many people does group A have?
OpenStudy (brucebaner):
152
geerky42 (geerky42):
No. that's how many chose option 1.
Group A has both people that chose either option 1 or 2, right?
OpenStudy (brucebaner):
yes my bad
geerky42 (geerky42):
ok, so what's total?
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geerky42 (geerky42):
you would just add people that chose option 1 and people that chose option 2 together.
geerky42 (geerky42):
Right?
OpenStudy (brucebaner):
201
geerky42 (geerky42):
|dw:1432417351058:dw|
OpenStudy (brucebaner):
add those
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geerky42 (geerky42):
So you have \(152+106\)
geerky42 (geerky42):
Yes
OpenStudy (brucebaner):
258
geerky42 (geerky42):
yeah, now we know the total.
So \(\dfrac{Option~2}{total~in~group~A}\times100\quad\Rightarrow\quad\dfrac{106}{258}\times100=~?\)
OpenStudy (brucebaner):
41.8
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geerky42 (geerky42):
I got 41.08?
OpenStudy (brucebaner):
i did to but i didnt put the 0
geerky42 (geerky42):
oh okay.
Final step: what is nearest whole percent?
geerky42 (geerky42):
It is closer to 41%, right?
OpenStudy (brucebaner):
right
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geerky42 (geerky42):
41.08 is closer to 41.00 than 41.999... = 42.00
geerky42 (geerky42):
So final answer: \(\boxed{41\%}\)
OpenStudy (brucebaner):
kk thx for explaining it to me thank you for your time
geerky42 (geerky42):
You are welcome.