SOLUTION: Doreen and Irene plan to leave their houses at the same time and roller blade towards each other to meet for lunch after 4 hours on the road. Doreen can maintain a speed of 7 miles

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Question 276736: Doreen and Irene plan to leave their houses at the same time and roller blade towards each other to meet for lunch after 4 hours on the road. Doreen can maintain a speed of 7 miles per hour which is 70% of Irenes speed. If they meet as planned what is the distance between houses?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT
7 MPH IS DOREEN'S SPEED.
7=.7X
X=7/.7
X=10 MPH FOR IRENE'S SPEED.
D=(7+10)4
D=17*4
D=68 MILES FROM HOUSES TO THE LUNCH PLACE.