Search found 4 matches
The way I would go about is finding the two potential answers first a. + |d-9| = 2d ; d-9=2d; -9=3d; d=-3 b - |d-9| = 2d ; -d+9=2d; 9=d Then substituting both -3 and 9 for "d" in the original statement |d-9| = 2d shows that only -3 is a viable answer... because both sides equal each other ...
- by indiheats
Sat Mar 23, 2013 11:42 am- Forum: Problem Solving
- Topic: Inequality
- Replies: 3
- Views: 1179
I believe this would be easiest to solve with simple substitution. (1) You will notice you have a "N" in the numerator and after substitution, a N in the denominator. This will help you simply cancel the N's out and the answer will be independent of the variable N.... a numeric answer SUFF...
- by indiheats
Sat Mar 23, 2013 11:32 am- Forum: Problem Solving
- Topic: Please help with fractions!
- Replies: 3
- Views: 1459
- by indiheats
Tue Jan 01, 2013 8:00 pm- Forum: Data Sufficiency
- Topic: can some one elaborate?
- Replies: 11
- Views: 3446
Why can T not be zero ? Making this 1/10 - and therefore a different remainder ... ?
O is a positive integer, is it not ?
- by indiheats
Tue Jan 01, 2013 7:58 pm- Forum: Data Sufficiency
- Topic: If r, s, and t are all positive integers
- Replies: 7
- Views: 9263