Problema Solution
Benny left the city for vacation. Alyssa left six hours later going 77 mph faster to catch up. After 5 hours Alyssa caught up. What was Benny's average speed?
Answer provided by our tutors
let v = Benny's average speed
Alyssa is going 77 mph faster thus her speed is: v + 77
since distance = speed*time we have
5(v + 77) = (6 + 5)v
by solving we find
v = 64.17 mph
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Benny's average speed is 64.17 mph.