Question

Irina rode her bike to work at an average speed of 16 miles per hour. It started to rain, so she got a ride home along the same route in her coworker's car at an average speed of 27 miles per hour. If Irina's ride home in the car took 24 minutes (0.4 of an hour), how many hours was her bike ride to work, to the nearest tenth of an hour? 0.2 of an hour 0.4 of an hour 0.6 of an hour 0.7 of an hour

Answer 1

0.7 hours

Explanation:

Answer 2

0.7 hours

Explanation:

The computation of the number of hours is shown below:

As we know that

Time = Distance ÷ speed

where,

Distance is

= 27 miles × 0.4

= 10.8 miles

ANd, the speed is 16 miles per hour

So, the number of hours is

= 10.8 miles ÷ 16 miles per hour

= 0.675 hours

= 0.7 hours

Hence, the number of hours is 0.7 hours