Running at a constant speed, Andrea covers 15 miles in 2.5 hrs. At this speed, how many minutes will it take her to run 2 miles?
I know that I need to use conversion but i don't know how to convert it.
To convert the time from hours to minutes, you need to remember that there are 60 minutes in 1 hour. So, to convert 2.5 hours to minutes, you would multiply it by 60:
2.5 hours * 60 minutes/hour = 150 minutes
Now you know that Andrea took 150 minutes to cover 15 miles. To find out how many minutes it will take her to run 2 miles, you can set up a proportion using the distance and time:
15 miles -------- 150 minutes
2 miles --------- x minutes
To solve for x, you can cross-multiply:
15 miles * x minutes = 2 miles * 150 minutes
Now divide both sides of the equation by 15 miles to isolate x:
x minutes = (2 miles * 150 minutes) / 15 miles
Simplifying further:
x minutes = 300 minutes / 15
x minutes = 20 minutes
Therefore, it will take Andrea approximately 20 minutes to run 2 miles at a constant speed.
2.5 hours = 150 minutes
15 miles in 150 minutes
{Divide by 15}
1 mile in 10 minutes
2 miles in ?? minutes