Question

At noon, your family leaves Louisville on a trip to memphis driving 40 miles per hour.Your uncle leaves Memphis to come to Louisville 2 hours later.He is taking the same route and is driving 60 miles per hour. The two cities are 380 miles apart.At what time do the cars meet?

Answer 1

before uncle starts driving, the family already drove for 2 hours 40mph

Answer 2

so the family and the uncle, at the start of the 3rd hour mark, are 300 miles away from each other.

Answer 3

family is driving 40mph and uncle is driving 60mph. added up, they're going towards each other 100mph.

Answer 4

thus 300/100 = 3 hours. it takes 3 hours for them to meet each other.

Answer 5

since the family left at noon, they will meet each other at 5:00 pm.

Answer 6

wowow, thanks dude.Your such a lifesaver! :)

Answer 7

:) no problem.