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人気のある Word Problems >

a dress is sold for 86 dollars. if this gives a profit of 45 percent on the cost price then what was the cost price

解

a d ress i s so l d f or 86 d o ll a rs . i f t hi s g i v es a p ro f i t o f 45 p erce n t o n t h e cos t p r i ce t h e n w ha t w a s t h e cos t p r i ce

解

Amount before addition : 59.31034 \dots

解答ステップ

Translate the problem into an equation:

86 = x + 0.45 x

86 = x + 0.45 x : x = \frac{1720}{29}

\frac{1720}{29} = 59.31034 \dots

Amount before addition : 59.31034 \dots

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