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Bounds of measurements homework?
The length of a roll of plastic sheeting is 500 cm, measured to the nearest 5 cm.
a) write down the least possible length and the greatest possible length of the roll of plastic sheeting.
least possible....... Greatest possible.........
b) a plastic sheet of length 100 cm, measured to the nearest 5 cm, is cut from the roll of plastic sheeting. find the least possible length of the sheeting left on the roll.
Thanks
1 Answer
- Wayne DeguManLv 78 years agoFavorite Answer
Possible lengths are 500 ± 2.5
so, least possible is 497.5cm, greatest possible is 502.5cm
Cut sheet, least 97.5cm, greatest 102.5cm
Smallest roll - largest cut would give least remaining
=> 497.5 - 102.5 = 395cm
:)>
