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12 lis 2015 · Using a ratio table to solve a word problem involving equivalent rates. We find the unit rate and then scale up to find equivalent rates.
With the current: Distance = 8 miles, Time = 2 hours Against the current: Distance = 6 miles, Time = 2 hours. We can use the formula: Distance = Rate × Time. For rowing with the current: 8 = (b + c) × 2. For rowing against the current: 6 = (b – c) × 2. Now we have a system of two equations: 2b + 2c = 8 2b – 2c = 6
Miles per hour is calculated by knowing how long an object has been moving and how many miles it has covered in that span. Divide the number of miles traveled by the hours spent...
Janae walked 3 miles per hour. In the problems on this page, we solved for distance and rate of travel, but you can also use the travel equation to solve for time. You can even use it to solve certain problems where you're trying to figure out the distance, rate, or time of two or more moving objects.
Speed, time, and distance problems worksheets. Make customizable worksheets about constant (or average) speed, time, and distance for pre-algebra and algebra 1 courses (grades 6-9). Both PDF and html formats are available.
When solving these problems, use the relationship rate (speed or velocity) times time equals distance. [latex]r\cdot t=d[/latex] For example, suppose a person were to travel 30 km/h for 4 h. To find the total distance, multiply rate times time or (30km/h)(4h) = 120 km. The problems to be solved here will have a few more steps than described above.
Walking. Lucie can walk about 3 4/5 miles each hour. How far can she walk in 2 hours 45 minutes? Round-trip. A woman works at a law firm in city A, about 50 miles from city B. She must go to the law library in city B to get a document. Find how long it takes her to drive round-trip if she averages 40 mph. Drive to NJ.
