Answer: The distance between Adi's house and the office is 90 miles.
Step-by-step explanation:
Hi, to answer this question we have to analyze the information give:
if Distance = speed x time
d = 2x
If she drives 15 mph slower:
d = (x-15) 3
d=d
2x = (x-15)3
Solving for x
2x = 3x-45
45=3x-2x
45=x
Replacing x in any of the two expressions;
d = 2 x = 2 (45) = 90
d =90 miles