1.which expression calculates the speed in meters per second of an object that travels a distance of 40 m every 10 s?
10 ÷ 40
40 + 10
40 ÷ 10
40⋅10
2.how long would it take to travel 425 m at the rate of 50 m/s ?
8.5 s
375 s
475 s
21,250 s
3.a boat travels for 4 hours at a constant speed of 35.25 km/h.
how far does the boat travel?
105 km
120 km
141 km
352 km
4.anton's family drove 216 mi to the lake averaging 48 mi/h . on the return trip home they averaged 54 mi/h .
what was the total time that anton's family spent driving to and from the lake?
8.0 h
8.5 h
9.0 h
9.5 h
5.a train traveled 210 mi in 3.5 h to its first stop. it then continued on traveling another 130 mi in 2.5 h.
what was the average speed of the train for the entire journey?
round to the nearest tenth, if necessary.
52.0 mi/h
56.0 mi/h
56.7 mi/h
60.0 mi/h