SOLUTION: hello i need help on this question. a car driven 240 miles in 12 hours. what is the rate in miles per hour? in hours per mile? i got the miles per hour is 20. i just cant figure

Algebra ->  Proportions  -> Lessons -> SOLUTION: hello i need help on this question. a car driven 240 miles in 12 hours. what is the rate in miles per hour? in hours per mile? i got the miles per hour is 20. i just cant figure       Log On


   

Question 663321: hello i need help on this question.
a car driven 240 miles in 12 hours. what is the rate in miles per hour? in hours per mile? i got the miles per hour is 20. i just cant figure out how to find hour per mile.
jim
Found 2 solutions by rfer, checkley79:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
240/12=20mph
1/20=0.05 hrs per mi

Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
R=D/T
1/R=T/D
1/20=12/240
1/20=1/20 OR .05 HOURS (OR .05*60=3 MINUTES PER MILE).