The wholesale price for a shirt is 7.50. A certain department store marks up the wholesale price by 70%. Find the price of the shirt in the department store.Round your answer to the nearest cent, as necessary.

解答

T h e w h o l es a l e p r i ce f or a s hi r t i s 7.50. A cer t ain d e p a r t m e n t s t ore ma r k s u p t h e w h o l es a l e p r i ce b y 70%. F in d t h e p r i ce o f t h e s hi r t in t h e d e p a r t m e n t s t ore . R o u n d yo u r an s w er t o t h e n e a res t ce n t, a s n ecess a ry .

Amount after addition : 12.75

求解步骤

Translate the problem into an equation:

x = 7.5 + 0.7 \cdot 7.5

x = 7.5 + 0.7 \cdot 7.5 : x = 12.75

Amount after addition : 12.75