Question

1)What is the speed of a bus that travels 60 km in 2 hours?
2)If a car travels 200 meters in 50 seconds what is the speed?
3)Reggie ran 44 yards in 4.4 seconds. What was his speed?
4)Lily kicks the soccer ball 40 yards in 2 seconds . What is the balls speed?

Answer 1

Answer:

The formula which relates distance, speed, and time is:

d = rt, where d is the distance traveled, r is the rate of travel or speed, and t is the time traveled.

Since we're given that r = 60 km./hr. and time t = 2 hrs. 20 min., then we can find time d traveled by the bus by substituting the given information into the distance-speed-time formula as follows:

d = rt

d = (60 km./hr.)(2 hrs. 20 min.)

= (60 km./hr.)(2⅓ hrs.)

NOTE: 20 minute = ⅓ of an hour.

= (60)(7/3) km.

NOTE: 2⅓ = 7/3

= (60/3)(7) km.

= (20)(7) km.

d = 140 km. is the distance a bus traveling at 60 km./hr. can travel in 2 hrs. and 20 min.

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