3 ms·
6.5 + 0.5 is 7.0, not 7.5, so that should be valid. The book's cost can lie anywhere between [7, 8).
by gabagool 5y ago
6.5 + 0.5 is 7.0, not 7.5, so that should be valid.
The book's cost can lie anywhere between [7, 8).
- haxiomic 5y agoRight on the original typo, but still not convinced, I’ve rephrased to original to try to be clearer
- thaumasiotes 5y ago> say the books value is 7.5, Mash must have 1.5 (7.5 - 7) and Misha 6.5 (7.5 - 1), however now when you combine them they sum to exactly 7.5 not less than There are several problems with this: - 7.5 - 7 is 0.5, not 1.5 - 1.5 + 6.5 is 8, not 7.5 - 0.5 + 6.5 is still less than 7.5 The problem specifies that 2x - 8 < x. There is no way to constrain this to the specific solution x = 7. Everything would work fine if the book cost -2.6 kopecks.
- haxiomic 5y agoThank you :) I’m being very clueless today