A motorboat travels 152 kilometers in 4 hours going upstream. It travels 208 kilometers going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current? km Rate of the boat in still water: h km Rate of the current:

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Q: It took a crew 1 h 10 min to row 7 km upstream and back again. If the rate of flow of the stream was…

A: Let the speed of crew e x . Rate of flow of stream = 8 km/h Rowing speed in upstream = x - 8 km/h…

Q: same

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Q: The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s.…

A: First note the followings1)  1 min = 60s⇒14 min = (14 x 60) = 840 s⇒14 min  34.56 s .  = 840+34.56…

Q: It took a crew 1 h 12 min to row 9 km upstream and back again. If the rate of flow of the stream was…

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Q: It took a crew 1h 28 min to row 7 km upstream and back again. If the rate of flow of the stream was…

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Q: A motorboat maintained a constant speed of 15 miles per hour relative to the water in going 10 miles…

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Q: It took a crew 1 h 50 min to row 8 km upstream and back again. If the rate of flow of the stream was…

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Q: Ella's motorboat can travel 35mi/h in still water. If the boat can travel 6 miles downstream in the…

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Q: A motorboat travels 93 kilometers in 3 hours going upstream. It travels 123 kilometers going…

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Q: A plane can fly 170 mph in calm air. Flying with the wind, the plane can fly 555 mi in the same…

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A: Let the motorboat speed x and current speed is y Current is going in downstream

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Q: A motorboat travels 132 miles in 4 hours going upstream. It travels 244 miles going downstream in…

A:

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Q: 6520

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Q: It took a crew 3 h 36 min to row 6 km upstream and back again. If the rate of flow of the stream was…

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Q: It took a crew 2 h 15 min to row 7 km upstream and back again. If the rate of flow of the stream was…

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.