Mathematics
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OpenStudy (anonymous):
If 25 percent of x equals 35 percent of x, what is 45
percent of x?
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OpenStudy (baldymcgee6):
0
OpenStudy (anonymous):
why?
OpenStudy (baldymcgee6):
how can 25% of something = 35% of something?
OpenStudy (anonymous):
I don't know
OpenStudy (anonymous):
proportions?
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OpenStudy (baldymcgee6):
I don't know, maybe there is more than one answer, but x could be zero
OpenStudy (anonymous):
its a grid-in problem
OpenStudy (anonymous):
Those are the questions I have most trouble with on the SATs
OpenStudy (anonymous):
but how did you get to that solution?
OpenStudy (baldymcgee6):
I just thought about the question logically before even trying anything mathematically.
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OpenStudy (anonymous):
I don't really understand...
OpenStudy (anonymous):
This isn't as easy as finding the minimum amount of marbles needed be taken out
OpenStudy (baldymcgee6):
okay, lets say x = 100, how can 25% of 100 = 35% of 100? It can't, and this will be the same for any number other than zero i figure
OpenStudy (anonymous):
ahh
OpenStudy (baldymcgee6):
if x = 0, then 25% of 0 = 35% of 0
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OpenStudy (anonymous):
ahh
OpenStudy (anonymous):
now I understand
OpenStudy (anonymous):
There is only one x value, not two?
OpenStudy (baldymcgee6):
right, they would have used different variables if there was more than one value
OpenStudy (anonymous):
k
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OpenStudy (anonymous):
Now let me post a geometry problem