Question

River C is 300 miles longer than River D. If the sum of their lengths is 5, 570 miles, what is the length of each river? Show ALL work!​

Answer 1

River C. is 3,085 miles long.

River D. is 2,485 miles long.

Explanation:

1. Divide 5,570 by 2. Your answer will be 2,785.

2. Add 300 to 1 of your 2,785, and subtract 300 from the other.

3. You will have 3,085 and 2,485. If you add them together, you will have 5,570. This confirms that these two numbers are your answers.

4. You have your answer!