Which operation should be performed first according to the order of operations? 21 – 5 + 24 ÷ 3 + 90 • 4

According to Order of operation, we perform: Divide then multiplication then subtraction, then sum.

In short, Your Answer would be Option C) 24To remember use PEMDAS P=parenthesis E=Exponents M=Multiply D=Divise A=Addition S=Subtraction Since you do not have parenthesis or exponents you must first multiply / 3

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CharlieBrown2002 CharlieBrown2002 · Answer 2 · 2018-10-27T23:18:46+02:00

Answer:

[tex]\boxed{=384}[/tex]

Step-by-step explanation:

I'll give you a hint. You had to used pemdas stands for: p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract that came from left to right.

First you had to multiply and divide from left to right.

[tex]21-5+24/3+90*4[/tex]

[tex]21-5+8+90*4[/tex]

[tex]90*4=360[/tex]

[tex]21-5+8+360[/tex]

Then you add and subtract from left to right.

[tex]21-5=16[/tex]

[tex]16+8+360[/tex]

[tex]16+8=24[/tex]

[tex]24+360=384[/tex]

Final answer: [tex]\boxed{=384}[/tex]

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie