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OpenStax, Prealgebra 2e §6.3 Solve Sales Tax, Commission, and Discount Applications · Exercise 49 · Algebra · Algebra word problems

Solve Sales Tax, Commission, and Discount Applications · Exercise 49

Priam bought a jacket that was on sale for $40 %$ off. The original price of the jacket was $\$ \text{150}. $W hi l e t h es a l esc l er k f i g u r e d t h e p r i ce b y c a l c u l a t in g t h e am o u n t o f d i sco u n t an d t h e n s u b t r a c t in g t ha t am o u n t f r o m$ $\text{150}, $P r iam f o u n d t h e p r i ce f a s t er b y c a l c u l a t in g$ \text{60}\% $o f$ $\text{150}.$

ⓐ Explain why Priam was correct.
ⓑ Will Priam's method work for any original price?

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OpenStax, Prealgebra 2e · §6.3 Solve Sales Tax, Commission, and Discount Applications · Exercise 49

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