Answer :
2 hours 36 minutes
Step-by-step explanation :
speed = distance / time
Distance = 150 km
time = 1 hour 30 minutes
= 1,5 hours
How long will it take the car to cover a distance of 260 km at the same average speed ?
Time = Distance/Speed
= 260 km / 100 km/hour
= 2,6 hours
____________________
to convert hours to hours and minutes we can multiply by 60.
2, 6 hours
2 hours and 0,6 hours
0,6 = 3/5
3/5 × 60
60 ÷ 5 × 3
36 minutes
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Please consider the attached file.
We can see that triangle JKM is a right triangle, with right angle at M. Segment KM is 6 units and segment MJ is 3 units. We can also see that KJ is hypotenuse of right triangle.
We will use Pythagoras theorem to solve for KJ as:
Now we will take positive square root on both sides:
Therefore, the length of line segment KJ is and option D is the correct choice.
