Answer: The answer is: " 400 " .
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→ 20% of <u> 400 </u> is 80 .
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Step-by-step explanation:
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20% of "x" = 80 ; Solve for " x " ;
20% = 20/100 ;
= 20 ÷ 100 ;
= 20. ÷ 100 ;
= 0.20 ;
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Note that when <u>dividing by 100</u> , we move the decimal
point backward (when "dividing") — 2 (two) spaces —
since "100" has 2 (two) "zeros" .
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→ 0.20 = 0.2 ;
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→ (0.2) x = 80 ; Solve for "x" ;
In this case, multiply each side of the equation by "10" ; to get rid of the "decimal value" ; as follows:
→ (10) * (0.2) x = 80 * 10) ;
to get:
→ 2x = 800 ;
Now, divide Each Side of the equation by "2" ;
to isolate "x" on one side of the equation ;
& to solve for "x" ; as follows:
→ 2x / 2 = 800 / 2 ;
→ x = 400 .
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The answer is: " 400 " .
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→ 20% of <u> 400 </u> is 80 .
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Hope this is helpful to you!
Best wishes in your academic pursuits
— and within the "Brainly" community!
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