SOLUTION: Two cars leave city A at the same time to travel to City B. One car travels at 72 km/h and the other at 78 km/h. If the slower car arrives 20 minutes after the faster car, how far
Algebra.Com
Question 297367: Two cars leave city A at the same time to travel to City B. One car travels at 72 km/h and the other at 78 km/h. If the slower car arrives 20 minutes after the faster car, how far apart are City A and City B?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
D=RT
D=72(T+1/3)
D=78T
72(T+1/3=78T
72T+24=78T
72T-78T=-24
-6T=-24
T=-24/-6
T=4 HOURS.
D=78*4
D=312 MILES. ANS.
312=72(4+1/3)
312=288+24
312=312
RELATED QUESTIONS
Two cars leave City A at the same time to travel to city B. One car travels at 72 km/h... (answered by stanbon)
Two cars leave City A at the same time to travel to City B. One car travels at 72 km/h... (answered by ankor@dixie-net.com)
Two cars leave City A st the same time to travel to City B. One car travels at 72 km/h... (answered by ankor@dixie-net.com)
Two cars leave City A at the same time to travel to City B. One car travels at 72km/h and (answered by Fombitz)
Hello. I hope I am submitting this question in an appropriate category because I do ask... (answered by Fombitz,scott8148,edjones)
Two cars leave Salt Lake City, traveling in opposite directions. One car travels at a... (answered by checkley75)
two cars leave salt lake city, traveling in opposite directions. one car travels at a... (answered by solver91311,ikleyn)
Two cars started their travel from two cities A and B at 7 am. The distance between the (answered by solver91311)
Car travel. Two cars leave Salt Lake City traveling in opposite directions. One car... (answered by robertb)