Tara has driven 70 miles of a 154 mile trip. If she averages between 50 and 57 miles per hour, which of the following is a reasonable amount of time it will take her to complete the trip?
lower end speed:
so far --- time = 70/50 = 1.4 hrs
total trip -- time = 154/50 = 3.08 hrs
top end speed:
so far --- time = 70/57 = 1.23 hrs
total trip -- time = 154/57 = 2.701 hrs
I don't see a " which of the following" part , so use my results above to match with your choices
remember, you want the "time remaining", I have time used so far and total.
So what do you think you should do with my answers ?
Please can you tell me which method should I use to solve probability because I don't understand how to solve probability for grade 6
To determine a reasonable amount of time it will take Tara to complete the trip, we need to calculate the minimum and maximum time based on her average speed range.
First, let's find the minimum time it will take for Tara to complete the trip:
Minimum time = distance / maximum average speed
Minimum time = 154 miles / 57 miles per hour
To calculate this, divide the total distance of the trip (154 miles) by the maximum average speed (57 miles per hour).
Minimum time = 2.70 hours
So, it will take at least 2.70 hours to complete the trip.
Next, let's find the maximum time it will take for Tara to complete the trip:
Maximum time = distance / minimum average speed
Maximum time = 154 miles / 50 miles per hour
To calculate this, divide the total distance of the trip (154 miles) by the minimum average speed (50 miles per hour).
Maximum time = 3.08 hours
So, it will take at most 3.08 hours to complete the trip.
Therefore, a reasonable amount of time it will take Tara to complete the trip is between 2.70 hours and 3.08 hours.