SOLUTION: two cars going in opposite directions leave at the same time. one automobile travels 15 mph faster than the other. In 4 hours the automobiles are 460 miles apart. find the speed ea
Algebra.Com
Question 964818: two cars going in opposite directions leave at the same time. one automobile travels 15 mph faster than the other. In 4 hours the automobiles are 460 miles apart. find the speed each
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
460mi/4hr=115mi/hr The sum of the two cars speeds is 115moh.
S=slower car F-faster car=S+15mph
S+F=115mph Substitute for F.
S+S+15mph=115mph Subtract 15mph from each side.
2S=100mph Divide each side by 2.
S=50mph ANSWER 1: The slower car was traveling 50 miles per hour.
F=S+15mph=50mph+15mph=65mph ANSWER 2: The faster car traveled 65 miles per hour.
RELATED QUESTIONS
two cars leave denver at the same time and travel in opposite directions. One car travels (answered by rfer)
two cars leave denver at the same time and travel in opposite directions. one car travels (answered by Alan3354)
Two cars leave town at the same time going in opposite directions. One travels 55 mph... (answered by checkley77)
Cant figure this out :(
Two cars leave town at the same time going in opposite... (answered by lwsshak3)
two cars leave from the same point at the same time, traveling in opposite directions.... (answered by josgarithmetic,rfer)
A. Two cars leave town at the same time going in opposite directions. One travels at 50 (answered by richwmiller)
two trains going in opposite directions leave at the same time train b travels 15 mph... (answered by josmiceli)
Two trains leave from the same point at the same time, traveling in opposite directions.... (answered by mathstutor494)
Two cars leave Denver at the same time and travel in opposite directions. One car travels (answered by mananth)