Mathematics, 25.11.2020 22:20, cammie5292
Q: It took a patrol boat 5 hours to travel 60 km up a river against the current, and 3 hours for the return trip with the current. Determine the speed of the boat in still water and the speed of the current.
Let x be the speed of the boat in still water in km/hr
Let y be the speed of the current in km/hr.
*the 2 equations are x+y=20 and x-y=12 however I don’t understand why. Can someone explain?
Answers: 2
Mathematics, 21.06.2019 17:00, joejoefofana
Need on this one asap im almost done with this subject
Answers: 1
Mathematics, 21.06.2019 19:30, isabelgarcia188
∆red ≅ ∆ by rule will give brainiest if possible
Answers: 2
Mathematics, 21.06.2019 20:30, ultimatesaiyan
Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered
Answers: 1
Q: It took a patrol boat 5 hours to travel 60 km up a river against the current, and 3 hours for the...
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