Translate to a system of equations: The sum of two numbers is negative twenty-three. One number is 7 less than the other. Find the numbers.
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Textbook Solutions for Elementary Algebra
Question
Solve Uniform Motion Applications In the following exercises, translate to a system of equations and solve.
At the end of spring break, Lucy left the beach and drove back towards home, driving at a rate of 40 mph. Lucy’s friend left the beach for home 30 minutes (half an hour) later, and drove 50 mph. How long did it take Lucy’s friend to catch up to Lucy?
Solution
The first step in solving 5.4 problem number trying to solve the problem we have to refer to the textbook question: Solve Uniform Motion Applications In the following exercises, translate to a system of equations and solve.At the end of spring break, Lucy left the beach and drove back towards home, driving at a rate of 40 mph. Lucy’s friend left the beach for home 30 minutes (half an hour) later, and drove 50 mph. How long did it take Lucy’s friend to catch up to Lucy?
From the textbook chapter Systems of Linear Equations - Solve Applications with Systems of Equations you will find a few key concepts needed to solve this.
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