lost on math
1 Answer
jenp
The calculation in such questions is as follows: distance (given in miles) divided by speed (miles/hour) equals time (hours), At first, the balloon travels 200 miles at 20 miles per hour: 200 miles / 20 miles per hour = 10 hours. Then, the balloon travels the same distance at 40 miles per hour: 200 miles / 40 miles per hour = 5 hours. 10 + 5 hours = 15 hours.
| 12 years ago. Rating: 1 | |
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