Problema Solution
billie bob and suzie q live 13 3/4 miles apart. They set out at exactly the same time and walk towards each other with billie bob walking 3mph and suzie q 2.5 mph. how long does it take them to meet?
Answer provided by our tutors
d = 13 3/4 mi
d = 55/4 mi
v1 = 3 mph Billie Bob's walking speed
v2 = 2.5 mph Suzie's walking speed
t = the time they need to meet
Since distance equals time multiplied by speed we have:
v1t + v2t = d
3t + 2.5t = 55/4
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click here to see the equation solved for t
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t = 2.5 hr
It takes them two and a half hours to meet.