Some word problems have only one unknown value. In such cases, it is best to assign a variable to that unknown value,translate the word problem into a single mathematical equation, and then solve for the variable.Single-step word problemsPart AJulia spent $52 on a book. The cost of the book was $20 less than twice what she spent on a backpack. How muchdid the backpack cost?Express your answer numerically in dollars.> View Available Hint(s)dollarsSubmitMultistep word problemsWord problems are more complicated with two or more unknown values. First, assign a variable to each unknown value.The word problem should then be translated into the appropriate number of mathematical equations, which can then besolved by substitution. Keep in mind that the number of mathematical equations needed is equal to the number ofvariables.Consider the following multistep word problem:The sum of the ages of a brother and sister is 21. If four times the brother's age is subtracted from three times thesister's age, the difference is 14.Start by writing a separate equation for for each sentence.P Pearsonon Education Inc. All rights reserved.Terms of Usel Privacy Policy Permissions Contact Us |3:491/23/2PrtScnHomeEndF10PgDn11

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Julia spent $52 on a book. The cost of the book was $20 less than twice what she spent on a backpack. How much did the backpack cost? Express your answer numerically in dollars. View Available Hint/s)

Julia spent $52 on a book. The cost of the book was $20 less than twice what she spent on a backpack. How much did the backpack cost? Express your answer numerically in dollars. View Available Hint/s)

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

Some word problems have only one unknown value. In such cases, it is best to assign a variable to that unknown value,
translate the word problem into a single mathematical equation, and then solve for the variable.
Single-step word problems
Part A
Julia spent $52 on a book. The cost of the book was $20 less than twice what she spent on a backpack. How much
did the backpack cost?
Express your answer numerically in dollars.
> View Available Hint(s)
dollars
Submit
Multistep word problems
Word problems are more complicated with two or more unknown values. First, assign a variable to each unknown value.
The word problem should then be translated into the appropriate number of mathematical equations, which can then be
solved by substitution. Keep in mind that the number of mathematical equations needed is equal to the number of
variables.
Consider the following multistep word problem:
The sum of the ages of a brother and sister is 21. If four times the brother's age is subtracted from three times the
sister's age, the difference is 14.
Start by writing a separate equation for for each sentence.
P Pearson
on Education Inc. All rights reserved.
Terms of Usel Privacy Policy Permissions Contact Us |
3:49
1/23/2
PrtScn
Home
End
F10
PgDn
11

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