CE 111-
BASIC CE MATH
Lesson 9
Algebra
Work-Related Problems
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community
Ask the community for help and clear up your study doubts
University Rankings
Discover the best universities in your country according to Docsity users
Free resources
Our save-the-student-ebooks!
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Algebra: Work-Related Problems and Rates, Lecture notes of Mathematics
Examples and solutions for algebra problems related to work and rates, including digit-related problems and teamwork scenarios. Students will learn how to determine the time to finish a job, the rate of doing the job, and the amount of work done by individuals or teams with different rates.
What you will learn
- What is the effect on the workload when the number of workers is reduced or increased?
- What is the relationship between the rates of Albert and Bryan when they work together to finish a job?
- How can Albert and Bryan's rates be determined from the number of days it takes each to finish a job?
Typology: Lecture notes
2021/2022
1 / 18
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download Algebra: Work-Related Problems and Rates and more Lecture notes Mathematics in PDF only on Docsity!
CE 111-
BASIC CE MATH
Lesson 9 Algebra Work-Related Problems
LECTURE
OBJECTIVES
The primary objective of this lecture is to learn about verbal problems in algebra.
https://classpoint.app/join
ALGEBRA
For example: Albert can finish a job in A days Bryan can finish the same job in B days Carlo can undo the job in C days
ALGEBRA
1/A = rate of Albert 1/B = rate of Bryan -1/C = rate of Carlo
Albert and Bryan work together until the job is done:
Albert is doing the job while Carlo is undoing it until the job is done:
−^
= 1
ALGEBRA
If a job can be done by 10 workers in 5 hours, the workload is 10(5) = 50 man-hours.
If 4 workers is doing the job for 6 hours, the work done is 4(6) = 24 man-hours.
A remaining of 50 - 24 = 26 man-hours of work still needs to be done.
ALGEBRA
Example: Eleven men could finish the job in 15 days. Five men started the job, and four men were added at the beginning of the sixth day. How many days will it take them to finish the job?
Solution:
ANSWERS:
ANSWER KEYS
ANSWERS:
ANSWER KEYS