Question

12 is what percentage of 80

Answer 1

Answer:  " 15 % " .

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     →   " 12 is  15% of 80 " .

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Step-by-step explanation:

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12 = (n/100) * 80 ;

12 = (80n) /100 ;  Solve for "n:

Note:  80/100 = (80/10) / (100/10) = (8/10) = 0.8  ;

12 = (0.8)n  ;

↔ (0.8n) = 12

Multiply each side of the equation by "10" ; to get rid of the "decimal" ;

 10 * (0.8n) = 10 * 12 ;

to get:

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8n = 120 ;

Divide each side of the equation by "8" ;

to isolate "n" on ONE SIDE of the equation; & to solve for "n" ;

8n/8 = 120/ 8 ;

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to get:

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n = 15 .

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Answer:  " 15 % " .

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     →   " 12 is  15% of 80 " .

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Hope this helps!

Best wishes!

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