Q 451. Leeson can proofread a newspaper... [FREE SOLUTION]

91影视

Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset 91影视 Explanations$ Math

2nd Edition 路 1240 pages

ISBN: 9780998625713

Chapter 8: Q 451. (page 1009)

Leeson can proofread a newspaper copy in $4$ hours. If Ryan helps, they can do the job in $3$ hours. How long would it take for Ryan to do his job alone?

Short Answer

Expert verified

Ryan can do the job alone in $12 h o u r s$ .

Step by step solution

Step 1. Given information.

Leeson can proofread a newspaper copy in $4 h o u r s$ . Both leeson and Ryan can do the same job in $3 h o u r s$ .

Let $t$ the number of hours needed for Ryan to complete.

Step 2. To find the time taken.

	Number of hours to complete the job	Part of the job completed/ hours
Leeson	$4$	$\frac{1}{4}$
Ryan	$t$	$\frac{1}{t}$
Together	$3$	$\frac{1}{3}$

The part completed by Leeson plus the part completed by Ryan equals the amount completed together.

$\frac{1}{4} + \frac{1}{t} = \frac{1}{3} 12 t [\frac{1}{4} + \frac{1}{t}] = 12 t \frac{1}{3} 3 t + 12 = 4 t t = 12$

Therefore, Ryan takes $12 h o u r s$ to do the job alone.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

91影视

Leeson can proofread a newspaper copy in $4$ hours. If Ryan helps, they can do the job in $3$ hours. How long would it take for Ryan to do his job alone?

Short Answer

Step by step solution

Step 1. Given information.

Step 2. To find the time taken.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Logic and Functions

Theoretical and Mathematical Physics

Statistics

Probability and Statistics

Geometry

Decision Maths

Study anywhere. Anytime. Across all devices.

91影视

Leeson can proofread a newspaper copy in 4hours. If Ryan helps, they can do the job in 3hours. How long would it take for Ryan to do his job alone?

Short Answer

Step by step solution

Step 1. Given information.

Step 2. To find the time taken.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Logic and Functions

Theoretical and Mathematical Physics

Statistics

Probability and Statistics

Geometry

Decision Maths

Study anywhere. Anytime. Across all devices.

Leeson can proofread a newspaper copy in $4$ hours. If Ryan helps, they can do the job in $3$ hours. How long would it take for Ryan to do his job alone?