SOLUTION: You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your average speed?
Algebra.Com
Question 261454: You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your average speed?
Found 3 solutions by stanbon, solver91311, palanisamy:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your average speed?
---
rate = (total distance)/(total time)
---
total distance = 2*35+3*55+4*70 = 515 miles
total time = 2+3+4 = 9 hrs
-----
rate = 515/9 = 57.22 mph
==============================
Cheers,
Stan H.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If you travel 2 hours at 35 mph, then you travel 70 miles. 3 hours at 55 means you travel 165 miles, and 4 hours at 70 is 280 miles. 70 plus 165 plus 280 is 515 miles. It took 9 hours to travel 515 miles, hence average speed is 515 divided by 9 or just a touch over 57.2 mph.
John
Answer by palanisamy(496) (Show Source): You can put this solution on YOUR website!
You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph.
Total distance travelled = 2*35+3*55+4*70
= 70+165+280
= 515 miles
Total time = 2+3+4 = 9 hours
Average speed = 515/9 = 57 2/9 miles/hour
RELATED QUESTIONS
You travel 2 hour at 35 mph, 3 hours at 55 mph and 4 hours at 70 mph. What is your... (answered by Alan3354)
If you travel for 2 hours at a rate of 15 mph, and you travel for 6 hours at a rate of 5... (answered by stanbon)
You drive 20 miles at 55 mph, then 5 miles at 40 mph and finally, 2 miles at 25 mph. What (answered by ptaylor)
A train travels at an average speed of 20 mph through urban areas, 50 mph
through... (answered by orca)
If a car travels for 1 hour at 10 mph and 2 hours at 25 mph what is the average... (answered by Fombitz)
If you drive for 3 hours at 60 mph and then for 2 hours at 70 mph, how far will you... (answered by MathLover1)
If you drive for 3 hours at 60 mph and then for 2 hours at 70 mph, how far will you... (answered by yuginiwa,algebrahelp101)
A car travels 70 mph for 3 hours, 0 mph for 1 hour, 50 mph for 1.5 hours, and 60 mph for... (answered by richwmiller)
Kate drove 2 1/2 hours at an average speed of 55 mph and 1 1/2 hours at an average speed... (answered by rfer)