It takes a plane 40 min longer to fly from Boston to Los Angeles at 525 mi/h than it does to return at 600 mi/h. How far apart are the cities?
2,500 miles
B.
2,650 miles
C.
2,800 miles
D.
3,200 mile
2,500 miles
B.
2,650 miles
C.
2,800 miles
D.
3,200 mile
2006-11-14 05:55:39 · 3 answers · asked by hillary banks 1 in Science & Mathematics ➔ Geography
b, c, d
2006-11-14 05:57:40 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Okay - we have both speed and distance, therefore we can find time.
2500 miles / 525 mph = 4.76 hours = 285 minutes
2500 miles / 600 mph = 4.16 hours = 250 minutes
2650 miles / 525 mph = 5.04 hours = 303 minutes
2650 miles / 600 mph = 4.41 hours = 265 minutes
2800 miles / 525 mph = 5.33 hours = 320 minutes
2800 miles / 600 mph = 4.67 hours = 280 minutes
3200 miles / 525 mph = 6.09 hours = 366 minutes
3200 miles / 600 mph = 5.33 hours = 320 minutes
... since the difference in flight times is only 40 minutes, the answer has to be C (2800 miles).
2006-11-14 15:05:33 · answer #2 · answered by CanTexan 6 · 0⤊ 1⤋
a d c
2006-11-14 13:57:13 · answer #3 · answered by ural r 1 · 1⤊ 0⤋