SOLUTION: If you walk for 1.5 hours at 3 mph, how fast should you run during the next 0.5 hours to have the average speed of 4 mph?
Algebra.Com
Question 1019103: If you walk for 1.5 hours at 3 mph, how fast should you run during the next 0.5 hours to have the average speed of 4 mph?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Total time=2 hours
2 hours @ 4 mph=8 miles
1.5@3 mph=4.5 miles
8-4.5=3.5 miles
3.5 miles in .5 hours equals 7 miles in 1 hr., or 7 mph necessary!!!!!!!
RELATED QUESTIONS
You drove for 1 hour at 50 mph with what average speed would you have to drive for the... (answered by stanbon)
If a trip takes normally 15 hours at an average speed of 75 MPH how fast would you have... (answered by josmiceli)
Sam drove for 2 hours at 45 mph. He has the same distance remaining. How fast should he... (answered by jorel555)
You are on a 5-hour trip, and your speed for the first two hours only averaged 58 mph... (answered by jorel1380)
How far have you traveled if you drive 5 1/2 hours at 59 mph? Round to the nearest... (answered by Alan3354)
how far have you traveled if you drive 5 1/2 hours at 59 mph? round to the nearest... (answered by kmadison)
The great runner could travel 10 miles at 5 mph and then run 6 miles at 2 mph. What... (answered by rothauserc,lwsshak3)
The trip to Missoula take 5 hours driving 75 mph. If you need to get to Missoula in 4.5... (answered by rfer)
One day Larry decided to go fishing in the back country. He rode his bike 14 miles and... (answered by solver91311)