Explanation Given: A student claims that because in the problem “Abby delivers twice as many papers as Jillian, and Brandy delivers 50 more papers than Abby. How many papers does each deliver if the total numbers of papers delivered is 550” we need to find three unknown quantities, he must set up equations with three unknowns The student’s claim is wrong. To solve the problem, if he set three variables then the problem cannot be solved. To solve this problem take one variable relating the given conditions. Set up the equation of the problem using single variable in the following manner and the solution is obtained. Let the papers delivered by Jillian be a. The papers delivered by Abby be 2 a . The papers delivered by Brandy be 50 + 2 a . Total number of papers delivered = 550 . Compute the number of papers delivered by each as follows:

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ISBN: 9780137657988

Author: BILLSTEIN

Publisher: INTER PEAR

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Chapter 8.3, Problem 10MC

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Whether the given problem needs a setup of equations with three unknowns to find the solution.

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Chapter 8.3, Problem 9MC

Chapter 8.3, Problem 11MC

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Chapter 8 Solutions

PROB SOLV APPROACH FOR TEACHERS MYLAB

Ch. 8.1 - Use the fact that each prime in the prime...Ch. 8.1 - Find the value of 3 on a calculator. Explain why...Ch. 8.1 - Is it true that a+b=a+b for all a and b? If not,...Ch. 8.1 - The number 227 can be written as an infinite...Ch. 8.1 - a. Use the fact that if a prime p appears in the...Ch. 8.1 - Without using a calculator, order the following....Ch. 8.1 - a. To prove that 2335 a student wrote the...Ch. 8.1 - The sequence 1,1.01,1.001,1.0001,... is an...Ch. 8.1 - Let each number of a group choose a number between...Ch. 8.1 - Prob. 11MC

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Whether the given problem needs a setup of equations with three unknowns to find the solution.

To explain: Whether the given problem needs a setup of equations with three unknowns to find the solution.

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Chapter 8 Solutions

To explain:

Whether the given problem needs a setup of equations with three unknowns to find the solution.