bluedolphin3444 bluedolphin3444

05-11-2020
Mathematics

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Evaluate the following expressions: Show all your work. a. 4 x (- ½) x 9 x (-1) x 20 x (- 1/5) b. 4 ÷ (-2) x 3 x (-3) ÷ (-9)

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barbaradelaney60 barbaradelaney60

05-11-2020

a. 4 x (-1/2) x 9 x (-1) x 20 x (-1/5)
-2 x 9 x (-1) x 20 x (-1/5)
-18 x (-1) x 20 x (-1/5)
18 x 20 x (-1/5)
360 x (-1/5)
-72

b. 4/(-2) x 3 x (-3) / (-9)
-2 x 3 x (-3) / (-9)
-6 x (-3) / (-9)
18 / -9
-2

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