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인기 있는 Word Problems >

Cole just measured his dog and found out that it weighs 17 kilograms, which is 70% more than the last time Cole measured. How much did the dog weigh last time?

해법

C o l e j u s t m e a s u re d hi s d o g an d f o u n d o u t t ha t i t w e i g h s 17 ki l o g r am s, w hi c h i s 70% m ore t han t h e l a s t t im e C o l e m e a s u re d . Ho w m u c h d i d t h e d o g w e i g h l a s t t im e ?

해법

Amount before addition : 10

솔루션 단계

Translate the problem into an equation:

17 = x + 0.7 x

17 = x + 0.7 x : x = 10

Amount before addition : 10

인기 있는 예

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