Question 7 Use the rate equation \( r=\frac{d}{t} \) to solve the following problem. At \( 3: 45 \) p.m. Ibram leaves his house and drives 120 miles to his brother's house. He arrives at \( 5: 45 \) p.m. a. How many hours was the drive to his brother's house? The drive was b. What was his average speed? His average speed was

The drive was 2 hours long. If Ibram left at 3:45 p.m. and arrived at 5:45 p.m., the time taken for his journey can be calculated by finding the difference between the two times, which gives us 2 hours. His average speed was 60 miles per hour. Using the rate equation \( r = \frac{d}{t} \), we can substitute \( d = 120 \) miles and \( t = 2 \) hours. Thus, \( r = \frac{120}{2} = 60 \) miles per hour. Ibram was cruising along nicely!