Ronak rode on a roller coaster. He was at an elevation of 55 m above the mean sea level when he start the ride. During the ride the elevation changes as 412 m, -125 m, 272 m,-343, 490m, -640, and 50m
What is his elevation relative to the mean sea level at the end of the ride?
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12
Answer:
171m
Step-by-step explanation:
55+412+(-125)+272+(-343)+490+(-640)+50
467-125+272-343+490-640+50
342+272-343+490-640+50
614-343+490-640+50
217+490-640+50
761-640+50
121+50
171m
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