Answer:
Step-by-step explanation:
The information provided is enough information to answer question 40 because we know Kayla left for a party at 7:30 pm and the distance between Kayla's location and Stacey's location is 7.3 km. We can use the formula for distance (distance = speed * time) to find the speed (km/h) that Kayla was traveling when she left. Once we know the speed, we can use the formula again to find out what time Stacey will arrive at Kayla's location.
Here's how we can calculate the speed:
distance = speed * time
7.3 = speed * (7.3 - 0) / 60
speed = (7.3 * 60) / 7.3
speed = 60 km/h
Now that we know the speed, we can calculate the time it will take Stacey to travel that distance:
distance = speed * time
7.3 = 60 * time / 1000
time = (7.3 * 1000) / 60
time = 121.67 minutes
Since there are 60 minutes in an hour, we can convert the time to hours: 121.67 minutes = 2 hours and 1 minute.
So, Stacey will arrive at Kayla's location at approximately 9:31 pm (7:30 pm + 2 hours).
Therefore, option a is the correct answer.