London went shopping for a new video game because of a sale. The store was offering a 20% discount. If the price on the tag was 50, what would be the price after the discount but before tax, to the nearest dollar and cent?

解

L o n d o n w e n t s h o pp in g f or a n e w v i d eo g am e b ec a u se o f a s a l e . T h e s t ore w a s o ff er in g a 20% d i sco u n t . I f t h e p r i ce o n t h e t a g w a s 50, w ha t w o u l d b e t h e p r i ce a f t er t h e d i sco u n t b u t b e f ore t a x, t o t h e n e a res t d o ll a r an d ce n t ?

Amount after discount : 40

解答ステップ

Translate the problem into an equation:

x = 50 - 0.2 \cdot 50

x = 50 - 0.2 \cdot 50 : x = 40

Amount after discount : 40