Published Mar 7, 2009
seasoned hopeful
166 Posts
hello all,
i am having a terrible time getting the mixture word problems. you know the ones. if i have 45% this and want to mix it to 50% or this, etc etc etc.
i am having a real block and need help. any and all would be appreciated.
thanks:yeah:
Tonyapate
74 Posts
Me too...............! Jesus help us!.
nnicolee
159 Posts
Hey would you mind posting an example of a question so I can try to help you out?
Also, check out this web address they explain how to handle mixture problems! :)
Can you help me???? Here is one I am stuck at. I just don't get the operation I am suppost to follow.
This year, 75% of the graduating class of Harriet Tubman High School had taken at
least 8 math courses. Of the remaining class members, 60% had taken 6 or 7 math
courses. What percent of the graduating class had taken fewer than 6 math courses?
Can you help me???? Here is one I am stuck at. I just don't get the operation I am suppost to follow.This year, 75% of the graduating class of Harriet Tubman High School had taken atleast 8 math courses. Of the remaining class members, 60% had taken 6 or 7 mathcourses. What percent of the graduating class had taken fewer than 6 math courses?
Okay, the way I would figure this problem out is by writing out a list of information as follows
75%- 8 COURSES
60%- 6 OR 7 MATH COURSES
?- FEWER than 6
What you have to understand is if students have taken 8 courses then that means they've taken 6 or 7 courses (I think that's understandable enough). So in order to figure out who's completed less than 6 courses all you have to do is subtract 60% (the students who've taken 6 or seven) from 100% which is 40%. So 40% of students have taken 6 or fewer math courses.
What you'll see in this problem is that the 75%/8 courses is not needed. All you really need to know is HOW MANY have take 6or7 courses.
Thank you, Thank you, Thank you!:bowingpur
I was so stuck. I am really Thankful for people like you that care enough to help.
Miss Mab
414 Posts
um, well.....
Honestly I appreciate when anyone trys to help someone else when they're feeling stuck---especially on these kind of brain freeze ?'s---but I kinda think you might've got a little ahead of yourself there too, Nicole.
So, I read it as 'we know that the 75% are out because 8>6, and we also know that of the remaining 25% of the class(75+25=100% of class) that 60% of them had at least 6 classes. Now we need to know who had
Looks like we should see that 40% of that remaining 25% has taken fewer than 6. Well, because we have a nice and even breakdown of #'s to make the 100% (and don't ya love when that happens) all we REALLY need to know now is:
What is 40% of 25?
I do believe that there 10 students who had
I didn't set up the equation as these were small'ish and easily divisible, etc. But does the part where you actually get down to the real question of these wordy ones make more sense?
:)
um, well.....I do believe that there 10 students who had I didn't set up the equation as these were small'ish and easily divisible, etc. But does the part where you actually get down to the real question of these wordy ones make more sense?:)
I do believe the question said percent... not number of people....
Ok, ummmm...
Then my answer's still...
wait for it...
10.
Sheesh....
Ok, ummmm...Then my answer's still...wait for it...10.Sheesh....
*slap*
Well, thanks both of you for the help anyways. I appreciate it.