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Mathematics 18 Online
OpenStudy (anonymous):

Use signed numbers to solve. A helicopter descended 1200 feet, rose 800 feet, and then descended 450 feet. What was the net gain or loss in altitude? A. lost 2450 ft B. lost 850 ft C. gained 850 ft D. gained 2450 ft

OpenStudy (anonymous):

A?

OpenStudy (lieutenantgeneral):

B. lost 850 ft C. gained 850 ft

OpenStudy (anonymous):

No because it lost 1200 feet then it rose 800 and then it fell 450 1200-800=400 it is at 400 feet. then it lost another 450 feet

OpenStudy (anonymous):

its B.

OpenStudy (jojo12g):

its b i took the test

OpenStudy (anonymous):

(づ ̄ ³ ̄)づ

OpenStudy (anonymous):

well i can explain if the people don't get anything: U FIRST ADD 1200 AND 450, THEN U SUBTRACT 800!

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