Use this formula to calculate this word problem. d= r*t Robert is going on a trip to see his mother for her birthday party that evening, and is considering taking the train. His
mother lives 500 miles away, and he needs to work most of the day before he leaves. The train travels about 180 miles
per hour. How long will it take him to travel? If he leaves at 2PM, will he have enough time to get to the party at 8PM?
a 18.8 hours, yes
c. 2.8 hours, yes
b. 90 minutes, yes
none of the above
d.