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Rica's age is 3 times as old as Cathy. One year ago, she was 5 times as old as Cathy. Find their present age. Answer: x = and y = Solution: let x = Rica's Age R: y = Cathy's Age x=3y E: x-1 = 5(y-1) S: Use substitution Method A: x = and y = C: x=3y DDOBL EM

Rica's age is 3 times as old as Cathy. One year ago, she was 5 times as old as Cathy. Find their present age. Answer: x = and y = Solution: let x = Rica's Age R: y = Cathy's Age x=3y E: x-1 = 5(y-1) S: Use substitution Method A: x = and y = C: x=3y DDOBL EM

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Rica's age is 3 times as old as Cathy. One year ago, she was 5 times as old as Cathy. Find their present age. Answer: x = and y = Solution: let x = Rica's Age R: y Cathy's Age x=3y E: x-1 = 5(y- 1) S: Use substitution Method A: x = and y = C: x=3y Answer AGE RELATED PROBLEM Rica's age is 3 times as old as Cathy. One year ago, she was 5 times as Answer: x = [a] Answer: y =[b] old as Cathy. Find their present age.
Transcribed Image Text:Rica's age is 3 times as old as Cathy. One year ago, she was 5 times as old as Cathy. Find their present age. Answer: x = and y = Solution: let x = Rica's Age R: y Cathy's Age x=3y E: x-1 = 5(y- 1) S: Use substitution Method A: x = and y = C: x=3y Answer AGE RELATED PROBLEM Rica's age is 3 times as old as Cathy. One year ago, she was 5 times as Answer: x = [a] Answer: y =[b] old as Cathy. Find their present age.
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