Answer: 10
Step-by-step explanation:
By definition, the point at which a median intersects the side of the triangle opposite from the vertex from which it is drawn is the midpoint of that side.
9 times 12 is 108. so 42/108=21/54
They are going 279 miles at a rate of 62 mph.
time = distance / speed
time = 279/62
time = 4.5 hrs...or (4 hrs 30 minutes)
plus they plan on a 45 minute lunch...
4 hrs and 30 minutes + 45 minutes = 4 hrs and 75 minutes =
5 hrs 15 minutes. So they need 5 hrs and 15 minutes to get there...and they want to be there by 3.
So they will have to leave at : 9:45 <==