<PRE><B>Question 699259</B>
lisa left home in a car that was traveling at 48kph she walked home along the same route at a rate of 6kph the round trip took 1 hour and 30 minutes. how far did lisa walk?
**
let x=distance lisa walked and car traveled
travel time=distance/speed
1 hour and 30 min=3/2 hr
..
x/48+x/6=3/2
LCD:48
x+8x=72
9x=72
x=8
distance lisa walked=8 km
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