Mathematics, 03.04.2020 05:35 TJxx187
Devin is training for a competitive race by swimming and running. He covers a total distance of 9 km by swimming for 45 minutes and running for 20 minutes. The following day he swims for 30 minutes and runs for 40 minutes, covering a total of 14 km. Which system of linear equations can be used to find Devin's swimming rate (x) and his running rate (y) in kilometers per hour? A) 3 4 x + 1 3 r = 9 1 2 x + 2 3 y = 14 B) 3 4 x + 1 3 y = 14 1 2 x + 2 3 y = 9 C) 3 4 x + 1 3 y = 9 1 2 x β 2 3 y = 14 D) 3 4 x + 1 3 y = 23 1 2 x + 2 3 y = 23
Answers: 3
Mathematics, 21.06.2019 12:30
Karianne and lucius are analyzing a linear function on a graph. karianne says that unit rate is equal to rate of change, but that slope is calculated differently. lucius says that unit rate, rate of change, and slope are calculated the same way. who is correct? explain your answer.
Answers: 1
Mathematics, 21.06.2019 16:30
If g(x) is an odd function, which function must be an even function?
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Mathematics, 21.06.2019 17:40
If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then
Answers: 1
Devin is training for a competitive race by swimming and running. He covers a total distance of 9 km...
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