What number minus 33 1/3% OF IT equals 30.
I know the answer is 45,
but I do not know how to set up to get the answer. Please help!
Reason it out this way:
Suppose you knew the answer was X. Then if you took 33 1/3
percent of that X and then minused that off the X, you'd have
to get 30, wouldn't you?
So take 33 1/3% of X. That just means to take a third of X and
get X/3. Now minus that off the X. To do that you just put down
the X and then minus X/3 off of it, like this
X - X/3
That would have to equal to 30. So put it equal to 30:
X - X/3 = 30
Now solve that for X. If you can't solve that, post again.
You'll get X = 45 when you solve it.
Edwin
