This is similar to Problem 9 from you Section 2.3 (part 2) worksheet.

Josie and Red are two dogs standing next to each other in the dog park. Josie starts running straight west and Red starts running straight east. After $24$ seconds, the two dogs are $3000$ feet apart. Suppose Red runs $5$ feet per second faster than Josie. How fast was Red running?

Red was running feet per second.

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