Question

A car is traveling at a rate of 30 meters per second. What is the car's rate in kilometers per hour? How many kilometers will the car travel in 2 hours? Do not

round your answers
Rate:
XS ?
Distance traveled in 2 hours:

Answer 1

Rate = 108 km/hr

Distance travelled in 2 hours = 216 km

Explanation:

A car is travelling at a rate of 30 meters per second

1 km = 1000 meters

? km = 30 meters

Cross multiplying gives;
`(30)/(1000)` km

1 hr = 3600 seconds

? hrs = 1 second

Cross multiplying gives;
`(1)/(3600)` hrs

Speed = Distance ÷ Time

Speed in km/hr =
`(30)/(1000)` km ÷
`(1)/(3600)` hrs =
`(30)/(1000)` km ×
`(3600)/(1 hr)` = 108 km/hr

Distance travelled in 2 hours = 2 × 108 km = 216 km