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The average temperature, in degrees Fahrenheit, in the month of July in Clark City is 4 times the average temperature in the month of February. If the average temperature in July was 82 degrees, which of the following equations could be used to determine the average temperature in February \((t)\) ? A. \(t+4=\frac{82}{4}\) B. \(4 t=82\) C. \(\frac{t}{4}=21\) D. \(4 t=21\)

Short Answer

Expert verified
Option B: \(4t = 82\)

Step by step solution

01

Define variables

Let's denote the average temperature in February as \(t\) and the average temperature in July as 82.
02

Set up the relationship between temperatures

According to the given information, the average temperature in July is 4 times the average temperature in February. Therefore, we can write this relationship as: \(4t = 82\)
03

Match the relationship with the given options

Now, we need to match this equation with one of the given options. We can see that this equation matches most closely with option B: \(4t = 82\) So, the correct equation that represents the relationship between the average temperatures in February and July is:
04

Final answer

Option B: \(4t = 82\)

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

average temperature
Average temperature refers to the middle value of the temperature readings observed over a specific period, like a day, month, or year. To calculate an average temperature, you would add all the temperature readings together and divide by the number of readings.
For example, if recorded temperatures over a week are as follows: 50掳F, 52掳F, 48掳F, 49掳F, 47掳F, 51掳F, and 50掳F, you first add them to get 347掳F. Then divide by 7 (the number of days), resulting in an average temperature of approximately 49.57掳F. This value helps capture the overall climate condition for that period.
  • Average temperatures smooth out fluctuations, providing a stable reference.
  • Consistency in climate studies makes comparisons easier with average temperatures.
Using average temperature is common in weather forecasting and historical data analysis, aiding in understanding climatic changes over time.
problem solving
Problem solving in mathematics involves a series of steps to find a solution to a given scenario. The solution process typically includes understanding the problem, devising a plan, carrying out the plan, and evaluating the solution. In algebra, like in our original exercise, solving problems often begins with identifying the knowns and unknowns.
  • Identify what the problem is asking for, such as solving for a variable.
  • Use known equations or relationships, such as the given relationship between July and February temperatures.
  • Translate words into mathematical equations systematically, like translating '4 times the temperature in February equals the temperature in July'.
Once a plan is in place, apply algebraic operations to solve the equation. Check the final solution by substituting back into the original scenario to ensure its correctness. This methodical approach ensures a logical resolution to mathematical exercises or real-life situations.
variables in equations
Variables are symbols used in equations to represent unknown numbers or values. They are commonly denoted by letters such as \(t\), \(x\), or \(y\). In algebra, variables allow us to construct equations that model real-world situations, offering a way to calculate values indirectly.
Consider the equation from our exercise: \(4t = 82\). Here, \(t\) is a variable representing the average temperature in February. Rather than guessing the temperature, we use algebra to find an explicit value.
  • Setting up an equation involves identifying relationships between variables and constants, like in our task where July's temperature was mapped to February's through multiplication.
  • Solving for variables typically means isolating the variable on one side of the equation, which involves dividing both sides by 4 to find \(t = \frac{82}{4}\).
The application of variables in equations not only simplifies complex calculations but also helps model various scenarios mathematically, making them a powerful tool in both simple and advanced problem solving.

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