SOLUTION: You drive on Interstate 10 from San Antonio to Houston, half the time at 50 km/h and the other half at 82 km/h. On the way back you travel half the distance at 50 km/h and the othe
Algebra.Com
Question 753567: You drive on Interstate 10 from San Antonio to Houston, half the time at 50 km/h and the other half at 82 km/h. On the way back you travel half the distance at 50 km/h and the other half at 82 km/h.
What is your average speed for the entire trip?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Average speed is always ( total distance traveled ) / ( total time )
Let = total distance traveled
Let = total time
--------------------
Half the time is spent traveling at km/hr
Half the time is spent traveling at km/hr
-------------
-----------------
The average speed is
The 's cancel
Average speed = 132 / 2
Average speed = 66 km/hr
RELATED QUESTIONS
You are driving from Houston to San Antonio on Interstate 10. You travel half the... (answered by richwmiller,Deina)
You drive on Interstate 10 from Lafayette to Houston, half the time at 56 km/h and the... (answered by solver91311)
Spacecraft A is over Houston at noon on a certain day and travelling at a rate of... (answered by josgarithmetic)
Spacecraft A is over Houstion at noon on a certain day and traveling at a rate of 275... (answered by checkley77)
at 10:30 A.M. two planes leave Houston, one flying east at 560 km/h and the other flying... (answered by rchill)
at 10:30 A.M two planes leave Houston, one flying east at 560 km/h and the other fliying... (answered by checkley75)
At 10:30 am two planes leave Houston, one flying east at 560 km/h and the other flying... (answered by josmiceli,DrBeeee)
at 10:30 am twp planes leave houston one flying east at 560 km/h and the other flying... (answered by psbhowmick)
Junior drove his rig on Interstate 10 from San Antonio and El Paso. At the halfway point (answered by TimothyLamb,MathTherapy)