Question

Please show work and tell me how you did it.

Answer 1

Step-by-step explanation:

1) speed of bicycle =
`(distance)/(time)`

speed of bicycle=
`(20)/(2)`

speed of bicycle = 10 miles/hour

2)speed of rocket =
`(distance)/(time)`

speed of rocket=
`(9000)/(12.12)`

speed of rocket= 742.57 meter/second

3)speed of jet plane =
`(distance)/(time)`

speed of jet plane=
`(528)/(4)`

speed of jet plane= 132 meter/second

4)speed =
`(distance)/(time)`

time =
`(distance)/(speed)`

time of trip=
`(350)/(80)`

time of trip = 4.375 hour

5) Distance = speed × time

Distance = 6 × 3 × 60

Distance = 1080 meter

6) Average speed =
`(total distance)/(total time)`

Average speed =
`(816)/(10)`

Average speed = 81.6 km/hour

7) Time =
`(Distance)/(speed)`

Time =
`(450 * 1000)/(120)`

Time = 3750 m/s