Use rational equations to solve. Each exercise is a problem involving motion.

1. How bad is the heavy traffic? You can wall: 10 miles in the same time that it takes to travel 15 miles by car. It the car's rate is 3 miles per hour faster than your walking rate, find the average rate of each. _ Distance _ Rate . 10 Walking .1: Car in Heavy 15 Trafc 15 x + 3 x + 3 5. In still water, a beat averages 15 miles per hour. It takes the same amount of time to travel 2U miles downstream, with the current, as it] miles upstream, against the current. W'hat is the rate of the water's current? 11. You must leave for campus in ID minutes or you will be late for class. Unfortunately, you are snowed in. You can shovel the driveway in 2D minutes and your brother claims he can do it in 15 minutes. If you shovel together, how long will it take to clear the driveway? TWill this give you enough time before you have to leave? 17. The tax on a property with an assessed value of $65,000 is $720. Find the tax on a property with an assessed value of $162,500.In Exercises 25 0-309, use similar triangles and the fact that corresponding sides are proportional to find the length of the side marked with an x. 18 in. 10 in. 9 in. 24 in. 12 in. 25.31. A tree casts a shadow 12 feet long. At the same time, a vertical rod 8 feet high casts a shadow 6 feet long. How tall is the tree? Sun's rays Sun's rays 6 f1 12 ft