the highest mountain in Argentina is Aconcagua. Its height is 6960 metres, correct to the nearest twenty metres.. Write the smallest possible height of Aconcagua. and show ur method.....
2007-07-20 20:50:08 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
It's 6950 because anything less, and it would be rounded down to 6940.
The max possible height is < 6970
2007-07-20 20:59:47 · answer #1 · answered by Dr D 7 · 0⤊ 1⤋
nearest 20 mtrs = ± 10 mtrs
possible height of Aconcagua = 6960 ± 10 mtrs
smallest possible height = 6960 -10 mtrs
= 6950 mtrs
2007-07-21 03:57:13 · answer #2 · answered by Vipin A 3 · 0⤊ 1⤋
good heavens. Think it through. "Correct to the nearest twenty metres" means that at most the measured height is off by 20 metres. Hence 6960-20 = 6940 metres.
2007-07-21 03:54:13 · answer #3 · answered by Justin D 5 · 1⤊ 1⤋
Height "correct to the nearest twenty metres" means "+/- 10m" (tricky!)
Then height is 6960 +/- 10 m
So the smallest possible height is 6960 - 10 m = 6950m
(In general "precision Î" or "correct to the nearest Î" means +/- Î/2 )
2007-07-21 03:53:40 · answer #4 · answered by smci 7 · 0⤊ 1⤋