3d. For Tens, two Places, thus: 204.1 becomes 2.041:
4th. For Units, three Places, thus: 340.1 becomes .3401:
5th. And for each Decimal, a Place more, by adding Cyphers to the left, if wanted, thus: 68.0 becomes .00680.
407. Place the plain and decimated Answers, in one View, and add the latter together, thus:
204.1 = | the same | 204.1 |
612.3 = | becomes | 61.23 |
204.1 = | 2.041 | |
340.1 = | .3401 | |
68.0 = | .00680 | |
| ————— | ||
| viz. Expansion of Air with 28° on 3935.1 | 267.7|179 | |
408.
| Second, with .71° on Feet 3000 = | 517.5 |
| 900 as 9000 = | 1552.7 |
| 30 3000 = | 517.5 |
| 5 5000 = | 862.6 |
| .1 1000 = | 172.5 |
In order to decimate these Answers, it must be observed that the Expansion was not with 71 Degrees, but with .71 Tenths of a Degree of Heat; therefore the decimal Point corresponding to 3000 Feet in the Question, must in the Answer be removed two Places to the left, thus: 517.5
| becomes | 5.175: | for the 100, three Places: for the 10, four Places: and so on. |
| 1.5527 | ||
| .05175 | ||
| .008626 | ||
| .0001725 | ||
| ————— | ||
| 6.7|882485 |
The Expansion with .71 being found, viz. Feet 6.7 Tenths; add it to the Expansion on 28 Feet already found, viz.