josh158 josh158

13-01-2017
Mathematics

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Evaluate [(21 + 6) − 32] ÷ 9 ⋅ 2

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hap092002 hap092002

13-01-2017

PEMDAS is key.
[(21+6)-32]/9x2
[27-32]/9x2
(-5)/9x2
-5/18
Approx. -0.28

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13-01-2017

I got -10/9.
add 21 & 6 =27
Now move 32 to the parentheses which is 27 - 32 = -5
-5/9 x 2
Which results in -10/9

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