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Phổ biến Word Problems >

Sara went to lunch with her friend. Sara's lunch cost 12.50 but she wants to leave a 20% tip. What is the total cost after tip?

Lời Giải

S a r a w e n t t o l u n c h w i t h h er f r i e n d . S a r a^{'} s l u n c h cos t 12.50 b u t s h e w an t s t o l e a v e a 20% t i p . Wha t i s t h e t o t a l cos t a f t er t i p ?

Lời Giải

Amount after tip : 15

Các bước giải pháp

Translate the problem into an equation:

x = 12.5 + 0.2 \cdot 12.5

x = 12.5 + 0.2 \cdot 12.5 : x = 15

Amount after tip : 15

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