SOLUTION: Doreen and Irena plan to leave their houses at the same time roller blade towards each other and meet for lunch after 4 hours on the road. doreen can maintain a speed of 8 miles pe

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Doreen and Irena plan to leave their houses at the same time roller blade towards each other and meet for lunch after 4 hours on the road. doreen can maintain a speed of 8 miles pe      Log On


   

Question 969926: Doreen and Irena plan to leave their houses at the same time roller blade towards each other and meet for lunch after 4 hours on the road. doreen can maintain a speed of 8 miles per hour which is 80% of Irena's speed if they meet exactly as planned what is the distance between their houses?
Answer by lwsshak3(11628) About Me  (Show Source):
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Doreen and Irena plan to leave their houses at the same time roller blade towards each other and meet for lunch after 4 hours on the road. doreen can maintain a speed of 8 miles per hour which is 80% of Irena's speed if they meet exactly as planned what is the distance between their houses?
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8=doreen's speed
let x=Irena's speed
80%x=8
x=8/0.8=10=Irena's speed
8+10=18=speed at which Doreen and Irena's are moving toward each other
travel time*speed=distance
4*18=36
what is the distance between their houses? 36 mi