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OpenStudy (samara8954):
Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 55 miles per hour. Then, in the second hour, she traveled at a speed of 66 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent. 16.7% 83.3% 80% 20%
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OpenStudy (alexandervonhumboldt2):
55*(1+x/100)=66 you always asks similar uestion
OpenStudy (alexandervonhumboldt2):
20%
OpenStudy (alexandervonhumboldt2):
thx
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