1. two cars live in town and travel in opposite directions. one car travels at the rate of 45 kph and the other at 55 kph. in how many hours will the two cars be 350 kilometers apart?
2. if the digits of a two-digit number are reversed the number is increased by 36. the sum of the digits in the number is three times their difference. what is the number
3. a boat travels 30 km upstream in the same time it takes to travel 46 km downstream if the current speed is 6 kph determine the boat speed in still water
4. Deewye bought a motorcycle worth 58,000. This price however, was a result of some add ins expenses 2,000 was added to the original of an compartment on the back. Then 15% of the original price was added as a mark up for the seller. Lastly, the seller added 1,500 for sales tax. How much was the original price of the motorcycle?