Question

The cunninghams are moving across the country. Mr. Cunningham leaves 3 hours before mrs. Cunningham. If he averages 85mph and she averages 95mph, how long will it take mrs. Cunningham to overtake mr. Cunningham?

Answer 1

Answer:

Step-by-step explanation:

Remember, distance traveled is the rate times the time. (d = rt) Mrs. Cunningham will overtake Mr. Cunningham when they have traveled the same distance.

Mrs. Cunningham's equation will be: d = 95t

Since he was traveling 3 hours longer, Mr. Cunningham's equation will be: d = 85(t + 3)

If the travel the same distance, the equations can be set equal to each other:

95t = 85(t + 3)

95t = 85t + 255

10t = 255

t = 25.5

It will take Mrs. Cunningham 25.5 hours to overtake her husband.