How many hours will it take for them to be 822 miles apart, Mathematics

Two trains leave the same city at the same time, one going east and the other going west. If one train is traveling at 65 mph and the other at 72 mph, how many hours will it take for them to be 822 miles apart?

Use the formula distance = rate × time for each train and add these values together so in which the distance equals 822 miles. For the ?rst train, d = 65t and for the second train d = 72t, where d is the distance and t is the time in hours. Add the distances and set them equal to 822: 65t + 72t = 822. Combine such as terms on the left side of the equation: 137t = 822; divide 137t/822 both sides of the equation through 137: 137/137 = 822/137. The variable is now alone: t = 6. In 6 hours, they will be 822 miles apart.

Posted Date: 5/20/2013 3:17:38 AM | Location : United States







Related Discussions:- How many hours will it take for them to be 822 miles apart, Assignment Help, Ask Question on How many hours will it take for them to be 822 miles apart, Get Answer, Expert's Help, How many hours will it take for them to be 822 miles apart Discussions

Write discussion on How many hours will it take for them to be 822 miles apart
Your posts are moderated
Related Questions
Ray cut 6 pieces of rope . Each piece was between 67 and 84 inches long. What would be the total length of the 6 pieces of rope?

Standardizing a Random Variable       If X is a random variable with E(X) = m and V(X) = s 2 , then Y = (X – m)/ s is a random variable with mean 0 and standard deviatio

Three shirts and five ties cost $23. Five shirts and one tie cost $20. What is the price of one shirt? Let x = the cost of one shirt. Let y = the cost of one tie. The ?rst part

how to do them?

A group of 5 people are going to meet weekly at the library for 4 weeks. Every week, two people are selected at random to speak. Every person may speak in multiple weeks, but no pa

what are reason inside a circle?


It’s been a busy weekend for Larry. Five people in his neighborhood left on vacation Saturday morning and each of them left a pet for Larry to care for until they return. It’s a go


Under this section we're going to go back and revisit the concept of modeling only now we're going to look at this in light of the fact as we now understand how to solve systems of