Question

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

Answer 1

-1200 + 800 - 450

Answer 2

B.

Answer 3

um can you explan how its b?

Answer 4

work out what i wrote

Answer 5

-1200+ 800 is -400

Answer 6

then add -400 + 450

Answer 7

oops i meant -450

Answer 8

-1200 + 800 = -400
-400-450 = -850

lost 850

Answer 9

so like i said B.

Answer 10

:P

Answer 11

yes - but plz don't give direct answers

Answer 12

..................

Answer 13

:d thanks for explaning it to me :D

Answer 14

yw

Answer 15

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