SOLUTION: Your friend is driving from Los Angeles to San Fransisco at an average rate of speed 55mph. After she has aleady driven 60 miles, you decide that you want to go to San Fransisco to

Question 913064: Your friend is driving from Los Angeles to San Fransisco at an average rate of speed 55mph. After she has aleady driven 60 miles, you decide that you want to go to San Fransisco too. You are averaging 70mph. How many hours will it take for you to catch up to her?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Gaining speed 70 -55= 15 mph
Headstart 55*1.09090909 =60.0 miles
Time to catch up 60.0/15=4.0 hours
Algebraic solution
55(t+1.09090909)=70t
55t+60.0=70t
60.0=70t-55t
60.0=15t
t=4.0 hours
Distance to meeting 4.0*70=280.0 miles
code drtch1
no more info

RELATED QUESTIONS
I'm having trouble answering the bottom two questions!! Please help as soon as possible... (answered by Boreal)

You and your friend are each driving 379 miles from Los Angeles to San Francisco. Your... (answered by mananth)

Emilia drove at an average speed of 50mi/h from her home in Los Angeles to visit her... (answered by josgarithmetic,MathTherapy)

A car and a van leaves Los Angeles at the same time headed for San Francisco the car... (answered by Alan3354)

A freight train, traveling at an average rate of 30 mi/h, leaves san francisco for Los... (answered by mananth)

A freight train, traveling at an average rate of 30 mi/h, leaves san francisco for Los... (answered by oberobic)

A freight train, traveling at an average rate of 30mi/hr, leaves San Francisco for Los... (answered by josgarithmetic)

Driving at the rate of 70 miles per hour from San Bernardino, Ca to Dallas Texas takes... (answered by calbreez)

the distance from Chicago to Los Angeles is about 2,190 miles. About how many hours will... (answered by Alan3354)