SOLUTION: The rate (R) of a car varies inversely with the time (T). A trip takes 8 hours at 60 km/hr. How long will be the same trip take at 70 km/hr?
Algebra.Com
Question 1173945: The rate (R) of a car varies inversely with the time (T). A trip takes 8 hours at 60 km/hr. How long will be the same trip take at 70 km/hr?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi,
R varies inversely with Time
R = k/T
60 = k/8
k = 480
R = 480/T
70 = 480/T
T70 = 480
T = 480/70
T = 6.86 (2 dp)hrs.
Hope this helps :-)
RELATED QUESTIONS
the time t required to drive a fixed distance varies inversely as the speed r it takes 5... (answered by lynnlo)
The time, t, required to drive a fixed distance varies inversely as the... (answered by Boreal)
Time varies inversely with speed if the distance is constant. A trip takes 4 hours at 80... (answered by math_helper)
the time, t, required to drive a certain distance varies inversely with speed, r. If it... (answered by checkley77,macston)
The amount of time for a trip varies inversely as the speed traveled. A car reached its... (answered by jim_thompson5910)
George is taking a road trip. Part of the trip will be highway driving at 100 km/hr and... (answered by ankor@dixie-net.com)
The time it takes to fly from Los Angeles to New York varies inversely as the speed of... (answered by Alan3354)
please help me solve these problems
two motocyles travel toward each other from cities (answered by mananth)
The time t required to drive a fixed distance varies inversely as the speed r. It takes 5 (answered by stanbon)