The cunninghams are moving across the country. mr. cunningham leaves 3 hours before mrs. cunningham. if he averages 55mph and sh

Question

Vinil7 [7]

4 years ago

7

The cunninghams are moving across the country. mr. cunningham leaves 3 hours before mrs. cunningham. if he averages 55mph and sh

e averages 75mph, how long will it take mrs. cunningham to overtake mr. cunningham?

Mathematics

1 answer:

balandron [24] · Answer 1 · 2021-11-28T09:04:37+03:00

balandron [24]4 years ago

7 0

His 3-hour head start puts Mr. Cunningham 165 miles ahead of her. She makes that up at the rate of (75 -55) = 20 mph, so will overtake Mr. Cunningham after (165 mi)/(20 mi/h) = 8.25 hours.