Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (anonymous):

@sleepyjess

OpenStudy (anonymous):

A. 0.667 B. 0.154 C. 0.235 D. 0.320

OpenStudy (anonymous):

tbh im not sure

OpenStudy (sleepyjess):

Mmmmm.... let me refresh my memory on this really quick

OpenStudy (anonymous):

ok

OpenStudy (sleepyjess):

Ok, so all this really is is taking all of the students that got a B divided by the number of students in the science class

OpenStudy (anonymous):

so then divide by ?

OpenStudy (anonymous):

so b=7 by 15?

OpenStudy (anonymous):

or b=12 by 15

OpenStudy (sleepyjess):

(students with a B)/(students in science)

OpenStudy (sleepyjess):

How many students with a B are there total?

OpenStudy (anonymous):

so 12 / 25

OpenStudy (anonymous):

i need a little more help like what do i divide by?

OpenStudy (anonymous):

u thinking?

OpenStudy (anonymous):

HELP PLZZZZZZ

OpenStudy (anonymous):

i dont no what to do

OpenStudy (anonymous):

Okay first, you total all the people n science class, and put it on the bottom.

OpenStudy (anonymous):

so 12

OpenStudy (anonymous):

i mean 25

OpenStudy (anonymous):

Yes, then put the grades in B that are ALSO in science on the top of the fraction

OpenStudy (anonymous):

yes but i dont understand how?

OpenStudy (anonymous):

like 12/25

OpenStudy (anonymous):

It's 8/25. Because there's 8 grades that are in the B AND science columns, you see?

OpenStudy (anonymous):

but thats not a answer

OpenStudy (sleepyjess):

Sorry, my mom got home, yes is is 12/25

OpenStudy (anonymous):

well maybe d

OpenStudy (anonymous):

Yep, it's D :)

OpenStudy (sleepyjess):

Maybe @TuringTest could clarify?

OpenStudy (anonymous):

ok i thinks its d to then

OpenStudy (sleepyjess):

Mmmm.... I see where I went wrong now.

OpenStudy (anonymous):

It's saying find the probably that a student will have a B in science

OpenStudy (sleepyjess):

Yep

OpenStudy (anonymous):

So you cant calculate the math grades into it

OpenStudy (sleepyjess):

You are right @bruhhh

OpenStudy (anonymous):

You and a friend each roll a standard die to see who goes first in a board game. What is the probability that at least one of you rolls a 6? A. 16 B. 1136 C. 2536 D. 56

OpenStudy (sleepyjess):

New thread?

OpenStudy (anonymous):

Why its easier to do it here?

OpenStudy (turingtest):

why do you think it is 12/25 ?

OpenStudy (anonymous):

its not its 8/25

OpenStudy (turingtest):

I know, but there seems to be some confusion and I was tagged

OpenStudy (anonymous):

well we got it but if u wont help on the next question

OpenStudy (turingtest):

please post each question separately as per the code of conduct of this site thanks

OpenStudy (turingtest):

i.e. start a new thread please

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!