SOLUTION: if you drive 20 mile and it takes you 30miutes your average speed is?

Algebra.Com
Question 572148: if you drive 20 mile and it takes you 30miutes your average speed is?
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
30 min = 1/2 hour

d = rt

20 = r(1/2)

20*2 = r

40 = r

r = 40


So the average speed is 40 mph
RELATED QUESTIONS

If you drive 20 miles and it takes you 30 minutes, your average speed is... (answered by sofiyac)
it takes you 6 hours to drive 324 miles what is your average speed? (answered by Edwin McCravy)
what was your average speed in km/hr if your house is 20 km from school and it takes your (answered by Cromlix)
You drive 220 miles to see a friend. The return trip takes 20 minutes less than the... (answered by ankor@dixie-net.com)
If you drive 50 miles in two and a half hours what is your average... (answered by Alan3354)
On a drive to Hopkinsville you take the scenic route and drive at average 50 mph. On your (answered by ewatrrr)
if it takes you 45 seconds to run 340 meters what is your average... (answered by edjones)
If you had driven one mile at 30 mph, how fast must you drive the second mile so your... (answered by stanbon)
1. if you drive 350 miles in 4 ¾ hours, what is your average speed? your solution (answered by richwmiller)