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Mathematics 8 Online
OpenStudy (anonymous):

Help, please! What is the value of this expression when m = 9 and n = 3? A. 6 B. 14 C. 16 D. 20

OpenStudy (anonymous):

please read your post

OpenStudy (anonymous):

The expression is missing from the post.

OpenStudy (anonymous):

Sorry, it was a picture. The expression is: m - 12 ÷ n + 15.

OpenStudy (anonymous):

Plug m = 9 and n = 3 and what do you get?

OpenStudy (anonymous):

23?

OpenStudy (anonymous):

How?

OpenStudy (anonymous):

Wait. Calculated wrong...

OpenStudy (anonymous):

I got 20 as my answer.

OpenStudy (anonymous):

m - 12 => 9 - 12 = -3. n + 15 => 3 + 15 = 18

OpenStudy (anonymous):

How did dividing them get 20?

OpenStudy (anonymous):

I did 9 - 12 ÷ 3 + 15 and I got 20.

OpenStudy (anonymous):

Is the problem: |dw:1331263977119:dw|

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