John took 45 minutes to bicycle to his grandmother's house, a total of four kilometers. What was his velocity in km/hr?
45/0.75 = x/1
Cross multiply and solve for x.
John took 0.75 hr to bicycle to his grandmother’s house, a total of four kilometers. What was his speed in km/hr?
To find John's velocity in km/hr, we can use the formula:
Velocity = Distance / Time
In this case, John traveled a total distance of 4 kilometers and it took him 45 minutes. However, we need to convert the time to hours in order to get the velocity in km/hr.
There are 60 minutes in an hour, so:
Time in hours = Time in minutes / 60
Therefore, John's time in hours is:
Time in hours = 45 minutes / 60 = 0.75 hours
Now we can calculate his velocity:
Velocity = Distance / Time
= 4 kilometers / 0.75 hours
Dividing 4 by 0.75 gives us:
Velocity = 5.33 km/hr (rounded to two decimal places)
So, John's velocity was approximately 5.33 km/hr.
To calculate John's velocity in km/hr, we need to convert the time from minutes to hours.
First, note that 1 hour is equal to 60 minutes.
To find the time taken by John in hours, we divide the given time of 45 minutes by 60:
45 minutes ÷ 60 = 0.75 hours
Next, we calculate the velocity (speed) using the formula:
Velocity = Distance ÷ Time
In this case, the distance John traveled is 4 kilometers, and the time taken is 0.75 hours.
Velocity = 4 km ÷ 0.75 hr
Dividing 4 by 0.75 gives us:
Velocity = 5.33 km/hr
Therefore, John's velocity was 5.33 km/hr.