ring width amount of precipitation If the amount of precipitation is added by 2 each ring width, what would the ring width be added by with the numbers of 1.4, 1.9, 2.5, 3.5, 3.8, 4.1 and 4.5

1.0 28
2.0 30
3.0 32
4.0 34
5.0 36
6.0 38
7.0 40
8.0 42

1 answer

To find the ring width added by each time, we need to subtract the previous amount of precipitation from the current amount of precipitation.

For the given numbers:

1.4, the difference in precipitation is 1.4 - 1.0 = 0.4
1.9, the difference in precipitation is 1.9 - 1.4 = 0.5
2.5, the difference in precipitation is 2.5 - 1.9 = 0.6
3.5, the difference in precipitation is 3.5 - 2.5 = 1.0
3.8, the difference in precipitation is 3.8 - 3.5 = 0.3
4.1, the difference in precipitation is 4.1 - 3.8 = 0.3
4.5, the difference in precipitation is 4.5 - 4.1 = 0.4

Therefore, the ring width would be added by 0.4, 0.5, 0.6, 1.0, 0.3, 0.3, 0.4 respectively.