Paolo can mow the lawn at his family's home in 2 hours. His younger sister Roberta needs 3 hours to mow the lawn. Paolo and Roberta would like to have 2 lawnmowers so they both can mow at the same time. The siblings need to know how much time working together would save to help convince their parents to get another lawnmower. What equation can the siblings use to determine the time t, in hours, needed to mow the lawn when they work together? 2t + 3t 72 + 130 1/1/27 + 17/1/20 3 = = = 1/1/213 1 2t + 3t = 1

Paolo can mow the lawn at his family's home in 2 hours. His younger sister Roberta needs 3 hours to mow the lawn. Paolo and Roberta would like to have 2 lawnmowers so they both can mow at the same time. The siblings need to know how much time working together would save to help convince their parents to get another lawnmower. What equation can the siblings use to determine the time t, in hours, needed to mow the lawn when they work together? 2t + 3t 72 + 130 1/1/27 + 17/1/20 3 = = = 1/1/213 1 2t + 3t = 1

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

Paolo can mow the lawn at his family's home in 2 hours. His younger sister Roberta
needs 3 hours to mow the lawn. Paolo and Roberta would like to have 2 lawnmowers
so they both can mow at the same time. The siblings need to know how much time
working together would save to help convince their parents to get another
lawnmower. What equation can the siblings use to determine the time t, in hours,
needed to mow the lawn when they work together?
2t + 3t = ¹/2
+2
+
4130
=
1
1/2 + 1/2 = 2/1/20
2t + 3t = 1

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