40% of what is 12?

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Answer 1 · 2016-06-23T19:44:57

40% of 30 is 12

Convert the percentage to a decimal by using division, just divide the percentage $40 %$ $40%$ by 100.

$40 \div 100 = 0.4$ $40-:100=0.4$

Divide $12$ $12$ by $0.4$ $0.4$

$\frac{12}{0.4} = 30$ $12/0.4=30$

Consider this:

$x$ $x$ = 40%
$y$ $y$ = 12
$z$ $z$ = 30

Divide $x$ $x$ by 100

Divide $\frac{x}{100}$ $x/100$ by $y$ $y$

$\frac{x}{100} / y$ $x/100/y$ = $z$ $z$

$\frac{40}{100} / 12 = 30$ $40/100/12=30$