Question 522670: Doreen and Irena plan to leave their houses at the same time, roller blade towards each other, and meet fo rlunch after 4 hours on the road. Doreen can maintain a speed of 7 mph, which is 70% of Irena's speed. If they meet exactly as planned, what is the distance between their houses.
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! meet for lunch after 4 hours on the road.
Doreen can maintain a speed of 7 mph, which is 70% of Irena's speed.
If they meet exactly as planned, what is the distance between their houses.
:
let s = Irene's speed
Find d's speed
.7s = 7
s = 7/.7
s = 10 mph is Irene's speed
:
Write a distance equation; dist = speed * time
4(10) + 4(7) = 68 miles
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