Question

herman and his dad are leaving early in the morning for his lacrosse tournament. their house is 210 miles from the tournament. they plan to stop and eat after 2 hours of driving, then complete the rest of the trip. hermans dad plans to drive at an average speed of 60 miles per hour. how long will the second part of the trip take? write your answer as a whole number or a decimal. hours

Explanation:

Step1: Calculate the distance covered in the first 2 hours

Use the formula \(d = vt\) (distance = speed × time). Here, \(v = 60\) miles per hour and \(t = 2\) hours.
\(d_1=60\times2 = 120\) miles.

Step2: Calculate the remaining distance

The total distance \(D = 210\) miles. The remaining distance \(d_2=D - d_1\).
\(d_2=210 - 120=90\) miles.

Step3: Calculate the time for the second - part of the trip

Use the formula \(t=\frac{d}{v}\). Here, \(d = d_2 = 90\) miles and \(v = 60\) miles per hour.
\(t=\frac{90}{60}=1.5\) hours.

Answer:

\(1.5\)