How long (in minutes) will a 400 -mile road trip take at 70 mph?
Round your answer to the nearest minute.
Solve 400/70 and multiply the answer by 60. Then round to the nearest minute.
To calculate the time in minutes for a 400-mile road trip at a speed of 70 mph, we can use the formula Time = Distance / Speed.
Time = 400 miles / 70 mph
To round the answer to the nearest minute, we can divide 400 by 70 and round to the nearest whole number.
Time = 5.71 hours
Converting this to minutes, we multiply 5.71 by 60.
Time = 342.6 minutes
Rounding this to the nearest minute, the road trip will take approximately 343 minutes.
To determine how long a road trip will take at a certain speed, you need to use the formula:
Time = Distance / Speed
In this case, the distance is 400 miles and the speed is 70 mph. Plugging in these values into the formula:
Time = 400 miles / 70 mph
To simplify the calculation, you can divide both the numerator and denominator by 10:
Time = (400 miles / 10) / (70 mph / 10)
This becomes:
Time = 40 miles / 7 mph
Now, to find the time in minutes, you need to convert the units. Since there are 60 minutes in an hour:
Time = (40 miles / 7 mph) * (60 minutes / 1 hour)
Simplifying further:
Time = (40 * 60) / 7 minutes
Now you can calculate the answer:
Time = 2400 / 7 minutes
Rounding the answer to the nearest minute:
Time ≈ 342.857 minutes
Therefore, a 400-mile road trip at 70 mph will take approximately 343 minutes.