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Concept explainers
To find: the amount money Hilary, Paul and Jeff have
![Check Mark](/static/check-mark.png)
Answer to Problem 4ST
The amount of money Hilary have is
The amount of money Paul have is
The amount of money Jeff have is
Explanation of Solution
Given information: “Hilary has three times as much money as Paul”, “Jeff has $4 less than Hilary and $5 more than Paul”
Concept Involved:
Assign variable for the unknown that we need to find. Use the keywords in the statement to rewrite the statement to meaningful math equation.
“same as” means =
“more than” means +
“less” means −
Solve the equation by getting the variable in one side of the equation and undoing whatever is done to it by performing reverse operation.
Calculation: Let ‘ x’ be the amount of money Paul have
Using the keywords given in the sentence “Hilary has three times as much money as Paul” we can conclude that the amount of money Hilary have is ‘ 3x’
Using the keywords given in the sentence “Jeff has $4 less than Hilary and $5 more than Paul” we can get two expressions to represent the amount of money Jeff have as ‘ 3x-4’ & ‘ x+5’
We can equate the two expressions representing Jeff money
In the process of getting x in one side of the equation subtract on both sides
Combine like terms on both sides
Add 4 on both sides of the equation
Divide by 3 on both sides of the equation
Simplify fraction on both sides of the equation
Evaluate the value of the expression 3x by substituting 4.5 for x
Evaluate the value of the expression
Conclusion:
The amount of money Hilary is represented by expression
The amount of money Paul is represented by expression x and equal to
The amount of money Jeff is represented by expression
Chapter 3 Solutions
Algebra: Structure And Method, Book 1
Additional Math Textbook Solutions
University Calculus: Early Transcendentals (4th Edition)
Introductory Statistics
A First Course in Probability (10th Edition)
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Thinking Mathematically (6th Edition)
College Algebra (7th Edition)
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