Agents Mulder and Scully are driving to Georgia to investigate "Big Blue," a giant aquatic reptile reported to inhabit one of the local lakes. Mulder leaves Washington at 8:30 A.M. and averages 65 mph. His partner, Scully, leaves at 9:00 A.M., following the same path and averaging 68 mph. At what time will Scully catch up with Mulder?
2007-01-17 13:22:05 · 4 answers · asked by World Expert 1 in Science & Mathematics ➔ Mathematics
30 minute head start gives a distance of: rt
r = rate 65 mph
t = time = (1/2) hr
--> 65/2 miles = 32.5 miles
The rate of catching up (T) is the difference between the speeds of the two cars.....68 mph and 65 mph, which is 3 mph.
Time to catch up is (T) = d/r
d = distance = 32.5 miles
r = rate = 3 mph
T = 10.83 hours to catch up.
2007-01-17 13:35:09 · answer #1 · answered by Anonymous · 1⤊ 1⤋
Mulder gets a 65mi/hr*1/2 hr=32.5 mi head start.
Scully is driving 3 mi/hr faster so it will take
32.5mi/3mi/hr=10 5/6 hrs or 10 hrs 50 min to catch up.
9 AM + 10 hrs 50 min=7:50 PM.
2007-01-17 13:35:15 · answer #2 · answered by yupchagee 7 · 1⤊ 0⤋
1hour 37 1/2 mins
2007-01-17 13:30:25 · answer #3 · answered by golden_retriever4u 2 · 0⤊ 1⤋
toddlers=C Adults=A C+A= fifty seven and 3c+5a=235 c=fifty seven-a three(fifty seven-a)+5a=235 171-3a+5a=235 171+2a=235 2a=sixty 4 a=32 plug a into c=fifty seven-a c=fifty seven-32 it truly is c=25 So your answer is 25 toddlers tickets and 32 individual tickets
2016-10-15 09:30:14 · answer #4 · answered by ? 4 · 0⤊ 0⤋