Question 732063
Freddie leaves home and rides his bicycle out into the country for 2.7 hours. On his return trip along the same route, it takes him 0.9 of an hour longer. If his rate on the return trip was 3 miles per hour slower than on the trip out into the country, find the total roundtrip distance. 
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let x=rate of speed of initial trip
x-3=rate of speed of return trip
distance=travel time*speed (same for both trips)
2.7x=(2.7+.9)(x-3)
2.7x=3.6(x-3)
2.7x=3.6x-10.8
.9x=10.8
x=12
roundtrip distance=2*2.7*12=64.8 mi