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Which of the following equations can be used to represent the information in the case below?
David and Terri drove a small motorboat down a river with the current. The rate the boat traveled in still water was r miles per hour and the currents average speed was c miles per hour. It took them 4.5 hours to travel 12 miles downstream



A. 4.5 = (r + c)12
B. 4.5 = (r - c)12
C. 12 = (r + c)4.5
D. 12 = (r - c)4.5

This question is part of Algebra 1 Semester Exam
Asked by Dinkinsk, Last updated: Jan 17, 2020

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2 Answers

f.Brian

F.Brian

Answered Jan 19, 2018

Among all the combinations, 12 = (r + c)4.5 can be used to represent the information in this case. To figure this out, one must have knowledge of basic algebra in mathematics and the word...Read More
 

John Smith

John Smith

Answered Dec 12, 2016

12 = (r + c)4.5
 

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