ElizabethF
18.07.2019 •
Mathematics
Acyclist rides her bike at a rate of 25 miles per hour. what is the rate in kilometers per hour? how many kilometers will the cyclist travel in 2 hours? in your computations, assume that 1 mile is equal to 1.6 kilometers
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Ответ:
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25 miles per hour = 50 miles in two hours = 1.6*50=80 kilometers
Ответ:
P = 2(2x - 1) + 2(3x) = 4x - 2 + 6x = 10x - 2
the student distributed wrong2(2x - 1) = 4x - 2added to 6x = 10x - 2, not 10x - 1