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Solving a Word Problem for the Past Price of a Home
Apply the seven-step problem-solving strategy to a real-world word problem to find a past price given a current price using multiplication and addition.
Problem: US Census data shows that the median price of a new home in the U.S. in November was . This was more than times the price in November . What was the median price of a new home in November ?
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Read the problem carefully. We are comparing a present house price to a past house price.
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Identify what to find: the median price of a home in .
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Name the unknown: Let = the median price of a new home in . The phrase " more than times the price in November " translates to the algebraic expression .
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Translate into an equation: The price in was , so:
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Solve the equation. First, subtract from both sides: Divide both sides by :
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Check: Is more than times equal to ?
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Answer: The median price of a new home in November was .
This problem applies the two-step equation framework to real-world financial data, highlighting how "more than" translates to addition and "times" translates to multiplication.
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Intermediate Algebra @ OpenStax
Ch.2 Solving Linear Equations - Intermediate Algebra @ OpenStax
Algebra
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Learn After
You are a financial analyst at a corporate real estate firm tasked with determining the historical acquisition cost of a commercial property. An old summary report states: "The property's current valuation of 850,000 dollars is exactly 50,000 dollars more than 8 times its original 1980 acquisition cost." Following the problem-solving strategy, if you let represent the original 1980 acquisition cost, which of the following equations correctly translates this scenario to find the past price?
Imagine you are a real estate analyst verifying historical housing data for a market report. Using the seven-step problem-solving strategy, match each verbal phrase from the report with its correct mathematical representation to find the past price, .
A junior real estate analyst is documenting the process used to calculate the historical acquisition cost of a property for a valuation audit. To ensure the report is logically sound and follows the firm's standard procedures, the analyst must apply a systematic seven-step problem-solving strategy. Arrange the following core steps of this strategy in the correct chronological order.
A corporate real estate analyst is using the seven-step problem-solving strategy to determine the historical acquisition cost of a property. During the '____' step, the analyst assigns a variable (such as ) to represent the unknown past price and uses it to write expressions for other related quantities.
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