fastest correct answer will get the points!
Gina has a large climbing vine outside her house, which doubles in height every year. Since planting the vine six years ago, it has grown to 26 feet. How many years did it take to grow to half this height?
2006-11-02 09:11:30 · 5 answers · asked by gee 2 in Science & Mathematics ➔ Mathematics
5 years
2006-11-02 09:17:35 · answer #1 · answered by Northern Spike 1 · 2⤊ 0⤋
3 years
2006-11-02 17:20:31 · answer #2 · answered by Anonymous · 0⤊ 3⤋
Northern spike has the right answer, but no reason, and professor Beatz has the right reason, but the wrong answer. The correct answer is 5 years - it doubles in height every year, so it had half its current height one year ago, which was 5 years after you planted it.
2006-11-02 17:26:50 · answer #3 · answered by Pascal 7 · 2⤊ 0⤋
One year ago it was half the height it is now, or 13 feet. Therefore it took 5 years to get that high.
2006-11-02 17:25:27 · answer #4 · answered by mom 7 · 3⤊ 0⤋
One. It doubles every year, so half was one year ago.
2006-11-02 17:13:54 · answer #5 · answered by Professor Beatz 6 · 1⤊ 1⤋