Mathematics, 28.05.2021 18:40 GabbyLandry
A crew of four practices by rowing up a river for a fixed distance and then returning to their starting point. The river has a current of 3 km/h.
(A) Currently the crew can row 15 km/h in still water. If it takes them 25 minutes to make the round-trip, how far upstream did they row?
(B) After some additional practice the crew cuts the round-trip time to 23 minutes. What is their still-water speed now? Round answers to one decimal place.
(C) If the crew wants to increase their still-water speed to 18 km/h, how fast must they make the round-trip? Express answer in minutes rounded to one decimal place.
Answers: 1
Mathematics, 21.06.2019 16:30
What is the area of a pizza with a radius of 40 cm leave the answer in terms of π to find your exact answer 40π cm² 1600π cm² 800π cm² 80π cm² π=pi
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Mathematics, 21.06.2019 23:30
The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.
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A crew of four practices by rowing up a river for a fixed distance and then returning to their start...
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