Another way to think about the GPE is that it gives the range of values that would round off to the number in question. 23\pm0.5 tells us a lower value and an upper value. 23-0.5=22.5 is the l...Another way to think about the GPE is that it gives the range of values that would round off to the number in question. 23\pm0.5 tells us a lower value and an upper value. 23-0.5=22.5 is the lowest weight that would round up to 23, and 23+0.5=23.5 is the upper limit of the weights that would round down to 23. (Yes, 23.5 technically would round up to 24, but it is easier to just say 23.5 instead of 23.49.) Using inequalities, we could represent 23\pm0.5 as the ran…
