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Mathematics 7 Online
OpenStudy (brucebaner):

help me easy math help me

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?

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?

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

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

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

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.

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