Math Problem Statement

Two trains leave towns 1026 miles apart at the same time and travel toward each other. One train travels 13 mph slower than the other. If they meet in 6 hours, what is the rate of each train?

Solution

This is a distance, rate, and time problem involving two trains moving toward each other. Let's break it down and solve step by step:

Problem Details:

  • Distance between two towns: 1026 miles
  • One train is slower than the other by 13 mph
  • The two trains meet after 6 hours

Unknowns:

  • Let the rate of the faster train be xx mph.
  • Then the rate of the slower train is x13x - 13 mph.

Formula:

For both trains traveling toward each other, their combined distance covered after 6 hours must be 1026 miles. Using the distance formula: Distance=Rate×Time\text{Distance} = \text{Rate} \times \text{Time}

The combined distance covered by both trains in 6 hours is: 6(x)+6(x13)=10266(x) + 6(x - 13) = 1026

Solving the equation:

6x+6(x13)=10266x + 6(x - 13) = 1026 6x+6x78=10266x + 6x - 78 = 1026 12x78=102612x - 78 = 1026 12x=1026+7812x = 1026 + 78 12x=110412x = 1104 x=110412=92x = \frac{1104}{12} = 92

Final Answer:

  • The faster train travels at 92 mph.
  • The slower train travels at 9213=7992 - 13 = 79 mph.

Would you like more details, or have any questions?

Related Questions:

  1. How would the solution change if the trains met after 8 hours instead of 6?
  2. What if the distance between the towns were 1200 miles but the trains met after 6 hours?
  3. How do you calculate the time it would take if both trains traveled the same speed?
  4. How can we use a graphing calculator to solve this system of equations?
  5. What happens to the rates if one train is 20 mph slower than the other?

Tip: When solving rate problems, always set up your equation using the distance formula Distance=Rate×Time\text{Distance} = \text{Rate} \times \text{Time} and keep track of units carefully!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Distance-Rate-Time Problems

Formulas

Distance = Rate × Time

Theorems

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Suitable Grade Level

Grades 8-10