we are going over the guess and check method. and im having trouble setting up this problem."Rachel works two different jobs. She is paid $15 per hour as a caretaker for a senior citizen and $8 per hour as a dog walker. last week she worked a total of 21 hours and earned a total of $280. How many hours did she work at each job that week?"

we are going over the guess and check method. and im having trouble setting up this problem."Rachel works two different jobs. She is paid $15 per hour as a caretaker for a senior citizen and $8 per hour as a dog walker. last week she worked a total of 21 hours and earned a total of $280. How many hours did she work at each job that week?"

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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we are going over the guess and check method. and im having trouble setting up this problem.

"Rachel works two different jobs. She is paid $15 per hour as a caretaker for a senior citizen and $8 per hour as a dog walker. last week she worked a total of 21 hours and earned a total of $280. How many hours did she work at each job that week?"

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