 | Edwin Pliny Seaver - 1878 - 376 σελίδες
...an hour. At the same time Smith starts at Worcester for Springfield, and travels at the rate of 9| miles an hour. How far apart will they be at the end of an hour ? In how many hours will they meet ? 143. To what must you add the difference between 11 ^... | |
 | Edwin Pliny Seaver, George Augustus Walton - 1878 - 360 σελίδες
...an hour. At the same time Smith starts at Worcester for Springfield, and travels at the rate of 9^ miles an hour. How far apart will they be at the end of an hour 3 In how many hours will they meet ? 143. To what must you add the difference between 11^ and... | |
 | Edwin Pliny Seaver, George Augustus Walton - 1878 - 370 σελίδες
...an hour. At the same time Smith starts at Worcester for Springfield, and travels at the rate of 9^ miles an hour. How far apart will they be at the end of an hour ? In how many hours will they meet ? 143. To what must you add the difference between 11 ^... | |
 | Edwin Pliny Seaver, George Augustus Walton - 1878 - 414 σελίδες
...an hour. At the same time Smith starts at Worcester for Springfield, and travels at the rate of 9-} miles an hour. How far apart will they be at the end of an hour ? In how many hours will they meet ? 143. To what must you add the difference between 11-j... | |
 | Edwin Pliny Seaver - 1878 - 360 σελίδες
...an hour. At the same time Smith starts at Worcester for Springfield, and travels at the rate of 9^ miles an hour. How far apart will they be at the end of an hour 1 In how many hours will they meet ? 143. To what must you add the difference between 11 T... | |
 | Edward Olney - 1879 - 392 σελίδες
...same direction. The passenger-train moves at the rate of 37 miles an hour, and the freight-train 19 miles an hour. How far apart will they be at the end of 13 hours? ANS., 234 miles. How far apart had they run in different directions ? ANS., 728 miles. 61.... | |
 | George Albert Wentworth - 1891 - 286 σελίδες
...and move along straight tracks that form an angle of 30°, one train at the rate of 30 miles an honr, the other at the rate of 40 miles an hour. How far apart are the trains at the end of half an hour ? a a Л ч l(A + е(ЛIog(a-6) colog (a + 6) log tan i (... | |
 | Horatio Nelson Robinson - 1891 - 88 σελίδες
...and travel in opposite directions, one at the rate of 4 miles an hour, and the other at the rate of 5 miles an hour, how far apart will they be at the end of 1 hour ? At the end of 2 hours 1 5 hours 1 6 hours ? 8 hours 1 10 hours ? 5. A grocer sold 2 pounds... | |
 | George Albert Wentworth - 1891 - 286 σελίδες
...and move along straight tracks that form an angle of 30°, one train at the rate of 30 miles an hour, the other at the rate of 40 miles an hour. How far apart are the trains at the end of half an hour ? 19. In a parallelogram given the two diagonals 5 and 6,... | |
 | Warren Colburn - 1891 - 240 σελίδες
...travel the same way ; one at the rate of 4f miles in an hour, the other at the rate of 4f miles in an hour ; how far apart will they be at the end of 1 hour ? how far in 2 hours ? how far in 5 hours ? how far in 10 hours ? how far in 3 days, if they... | |
| |
miles an hour and the other at the rate of 40 miles an hour ; how far apart will they be at the end of 2 hours 
