6. Betty wants to mail a package. The flat rate for mailing a package is $4, plus $2 per ounce. If Betty spent $88 to mail her package, how many ounces was it? 7. Jane is at the amusement park. The admission is $25, and the rides are $2 each. If Jane spent $57 at the amusement park, how many rides did she go on? 8. Carter is saving up for a playstation. He has $120 right now, and can save $25 a mont the playstation costs $195, how many months must he save?

6. Betty wants to mail a package. The flat rate for mailing a package is $4, plus $2 per ounce. If Betty spent $88 to mail her package, how many ounces was it? 7. Jane is at the amusement park. The admission is $25, and the rides are $2 each. If Jane spent $57 at the amusement park, how many rides did she go on? 8. Carter is saving up for a playstation. He has $120 right now, and can save $25 a mont the playstation costs $195, how many months must he save?

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

Question

6. Betty wants to mail a package. The flat rate for mailing a package is $4, plus $2 per
ounce. If Betty spent $88 to mail her package, how many ounces was it?
7. Jane is at the amusement park. The admission is $25, and the rides are $2 each. If Jane
spent $57 at the amusement park, how many rides did she go on?
8. Carter is saving up for a playstation. He has $120 right now, and can save $25 a month
the playstation costs $195, how many months must he save?

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