Question

A roller coaster starts with a 160-foot climb and then plunges 228 feet down canyon wall. It then climbs gradual 72 feet before a steep climb of 189 feet. Approximately how far is the coaster above or below its starting point

Answer 1

+ 160 - 228 + 72 - 189 = ?

The roller coaster is 185 feet below its starting point. :)

Answer 2

@JBrightman3 but in my book it says its 190 ft above its starting point

Answer 3

If the roller coaster goes up 160 feet and goes down 228 feet, then it is currently 68 feet below its starting point. Then it rises 72 feet, so it is 4 feet above its starting point. I'm sorry I misread the question before. I though it said a steep drop of 189 feet, but it is a steep climb. In that case, 4 + 189 is 193, so I don't know why your book says 190 feet above the starting point.

Answer 4

@JBrightman3 thanks :)