3/5 is 30% of what number? Thanks

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Answer 1 · 2018-05-15T11:24:32

$2$ $2$ .

To start, convert $\frac{3}{5}$ $3/5$ to a decimal:

$\frac{3}{5} = 0.6$ $3/5=0.6$

We'll set up an equation, which says that $\frac{3}{5}$ $3/5$ ( $0.6$ $0.6$ ) is $30 %$ $30%$ ( $0.3$ $0.3$ ) times a number:

$0.6 = 0.3 x$ $0.6=0.3x$

Divide both sides by $0.3$ $0.3$ :

$\frac{0.6}{0.3} = \frac{0.3 x}{0.3}$ $0.6/0.3=(0.3x)/0.3$

$0.6/0.3=(color(red)(cancel(0.3))x)/color(red)(cancel(0.3))$

$0.6/0.3=x$

$2=x$