Two cars leave Denver at the same time and travel in opposite directions. One car travels 10 mi/h faster than the other car. The
cars are 660 mi apart in 6 h. How fast is each car traveling?
40 mi/h and 50 mi/h
60 mi/h and 40 mi/h
60 mi/h and 70 mi/h
50 mi/h and 60 mi/h
2 answers:
Answer:
D.) 50 mi/h and 60 mi/h
Step-by-step explanation:
Answer:
50 mph and 60 mph
Step-by-step explanation:
Represent the two speeds by s and f (slower and faster). Then f = s + 10.
We find the distance traveled by each car separately, sum up the absolute values of these distances and set this sum equal to 660:
(s + s + 10)(6 hr) = 660 mi. Simplifying this, we get:
2s + 10 = 110, or
2s = 100.
Then s = 50 mph and f = (50 + 10) mph, or 50 and 60 mph (matches the last possible answer)
You might be interested in
It depends on how many options you have
You multiply the total number of books you have time 5 because you can choose 5
Answer:
The smaller is 25
the larger is 68
The land bridge (Bering strait) and the crossing from Canada
Answer:
2,4,1
Step-by-step explanation:
Answer:
x^4+2x^3y-3x
Step-by-step explanation: