SOLUTION: Two people start driving toward each other on the same highway at the same time from 420 miles apart. one car travels 15 mph faster then the other. what is the rate of each car
Algebra.Com
Question 188638: Two people start driving toward each other on the same highway at the same time from 420 miles apart. one car travels 15 mph faster then the other. what is the rate of each car if they meet in 4 hrs.
answer: the first car travels 60 mph; the second travels at 45 mph i got as far as d1 + d2= 420 ~~~~~> d2=420 - d1
r2=r1 + 15 need a full break down of answer
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
d=r*t
:
d=(r+15)4...eq 1---->d=4r+60.......fast car
420-d=r(4)..eq 2---->d=-4r+420.....slow car
:
4r+60=-4r+420
:
8r=360
:
r=45 slow car
:
r+15=60...fast car
:
RELATED QUESTIONS
Two people start driving toward each other on the same highway at the same time from... (answered by jojo14344)
Two people start driving toward each other on the same highway at the same time from... (answered by Mathtut)
Two people started driving toward each other on he same highway at the same time from... (answered by solver91311)
Two cars start directly toward each other at the same time from towns which are 280 miles (answered by Alan3354)
Two cars, 120 miles apart, begin driving toward each other on a long straight highway.... (answered by MathTherapy)
Two cars start from towns 420 miles apart and travel toward each other. They meet at 4... (answered by ikleyn)
Two cars 300 miles apart are driving toward each other one car goes 50 mph and the other... (answered by ewatrrr)
Two cars, 360 kilometers apart begin driving toward each other on a long straight... (answered by Alan3354)
two cars, 645 kilometers apart, begin driving toward each other on long straight highway. (answered by mananth)