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人気のある Word Problems >

a number that when decreased by 30% is 40

解

a n u mb er t ha t w h e n d ecre a se d b y 30% i s 40

解

Amount before reduction : 57.14285 \dots

解答ステップ

Translate the problem into an equation:

40 = x - 0.3 x

40 = x - 0.3 x : x = \frac{400}{7}

\frac{400}{7} = 57.14285 \dots

Amount before reduction : 57.14285 \dots

人気の例

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