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Exemplo 6.29 de Prealgebra, 6.3 Solve Sales Tax, Commission, and Discount Applications
Solve Sales Tax, Commission, and Discount Applications: exemplo 6.29
Problema e solução em inglês, como no livro original.
Jason bought a pair of sunglasses that were on sale for off. The original price of the sunglasses was What was the sale price of the sunglasses?
Resolva no papel primeiro. Depois abra a solução um passo de cada vez e pare assim que conseguir terminar sozinho.
Solução
Identify what you are asked to find. What is the sale price? Choose a variable to represent it. Let the sale price. Write a sentence that gives the information to find it. The sale price is the original price minus the discount. Translate into an equation. Simplify. Check if this answer is reasonable. Yes. The sale price, $29, is less than the original price, $39. Write a complete sentence that answers the question. The sale price of the sunglasses was $29.
Sua vez
O Try It do livro logo depois deste exemplo: mesma ideia, outros números. Só a resposta é dada.
Marta bought a dishwasher that was on sale for off. The original price of the dishwasher was What was the sale price of the dishwasher?
Como foi?