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Peer reviewed Peer reviewed
ERIC Number: EJ195347
Record Type: CIJE
Publication Date: 1979-Jan
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
An Application of an Algebraic Proof.
Knaus, Ronald M.; Knaus, Christopher G.
Mathematics Teacher, v72 n1 p44 Jan 1979
A proof is given that in the purchase price, sales tax followed by discount is the same as discount followed by sales tax. (MP)
Descriptors: Algebra, Distributive Education, Mathematical Applications, Mathematics, Percentage, Secondary Education, Secondary School Mathematics
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Proof (Mathematics)