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Exemplo 6.32 de Prealgebra, 6.3 Solve Sales Tax, Commission, and Discount Applications
Solve Sales Tax, Commission, and Discount Applications: exemplo 6.32
Problema e solução em inglês, como no livro original.
Adam's art gallery bought a photograph at the wholesale price of Adam marked the price up Find the ⓐ amount of mark-up and ⓑ the list price of the photograph.
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 amount of mark-up? Choose a variable to represent it. Let the amount of each mark-up. Write a sentence that gives the information to find it. The mark-up is 40% of the wholesale price. Translate into an equation. Simplify. Check if this answer is reasonable. Yes. The markup rate is less than 50% and $100 is less than half of $250. Write a complete sentence that answers the question. The mark-up on the photograph was $100. ⓑ Identify what you are asked to find. What is the list price? Choose a variable to represent it. Let the list price. Write a sentence that gives the information to find it. The list price is the wholesale price plus the mark-up. Translate into an equation. Simplify. Check if this answer is reasonable. Yes. The list price, $350, is more than the wholesale price, $250. Write a complete sentence that answers the question. The list price of the photograph was $350.
Sua vez
O Try It do livro logo depois deste exemplo: mesma ideia, outros números. Só a resposta é dada.
Jim's music store bought a guitar at wholesale price Jim marked the price up Find the ⓐ amount of mark-up and ⓑ the list price.
Como foi?