Mathematics, 29.02.2020 06:06, vallhernandez13
freight train and an express train leave towns 390 km apart, traveling toward one another. The freight train travels 30 km per hour slower than the express train. They pass one another 3 hours later. What are their speeds? I think the speed of the freight may be 100km/hr and express would be 130km/hr, using the velocity = distance/time equation, but I am not quite sure of the formula and expression, or the answer for that matter. So if you could please help me I would appreciate it.
Answers: 2
Mathematics, 21.06.2019 16:00, heids17043
Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?
Answers: 2
Mathematics, 21.06.2019 18:00, UsedForSchool2018
Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10
Answers: 1
freight train and an express train leave towns 390 km apart, traveling toward one another. The freig...
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