Wilma drove at an average speed of 55 mi/h from her home in City A to visit her sister in City B. She stayed in City B 20hours, and on the trip back averaged 45mi/h. She returned home 43 hours after leaving. How many miles is City A from City B
2007-02-08 13:19:19 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Geography
I think it's a math problem, dear.
I hope that's a start.
2007-02-08 13:21:23 · answer #1 · answered by Me, Thrice-Baked 5 · 2⤊ 1⤋
it took her 43hours - 20hours = 23 hours of travel time
she traveled 55mi/h going
45mi/h coming
the distance is the same
the distance is X between city A and city B
she travels twice that distance to go and come bock
she traels 2x mi.
she does it in 23 hours
since the distance is the same, they average speed of each trip has equal weight, so the overall average speed she traveled is 50mi/h
23h * 50mi/h = 1150mi = 2x
x = 575mi
the distance between city a and city b is 575miles
2007-02-08 21:26:55 · answer #2 · answered by Michael Dino C 4 · 1⤊ 0⤋
575 miles, or 1150 miles total round trip. (23 hours total round trip driving time @ 50 mph average speed)
2007-02-08 21:24:56 · answer #3 · answered by W3TOD 2 · 0⤊ 0⤋
total round trip took 23 hours
average speed is 50mph
23 * 50 = the answer
2007-02-08 21:23:13 · answer #4 · answered by martin h 6 · 0⤊ 1⤋
1150
2007-02-08 21:22:07 · answer #5 · answered by Anonymous · 0⤊ 1⤋
I think it is 1935 miles.
2007-02-08 21:24:44 · answer #6 · answered by Todd 3 · 0⤊ 1⤋