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RiyahhBallinnOutt:
In 20 seconds a roller coaster goes up a 100-meter hill then down 72 meters and then back up a 48-meter rise. How much higher or lower from the start of the ride is the coaster after 20 seconds?
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RiyahhBallinnOutt:
and there was no diagram
mw104969:
A total of 100-72+48=76 m rise is given to roller coaster during entire 20 sec.
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