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The ratio of the number of marbles Rvan had to the number of marbles Audrey nad at first was 2:7. After Ryan bought another 20 marbles and Audrey gave away 80 marbles, the ratio of the number of marbles Ryan had to the number of marbies Audrey had became 1:3. How many marbles did Audrey have at first?

The ratio of the number of marbles Rvan had to the number of marbles Audrey nad at first was 2:7. After Ryan bought another 20 marbles and Audrey gave away 80 marbles, the ratio of the number of marbles Ryan had to the number of marbies Audrey had became 1:3. How many marbles did Audrey have at first?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The ratio of the number of marbles Ryan had to the number of marbles Audrey nad at first was 2:7. After Ryan bought another 20 marbles and Audrey gave away 80 marbles, the ratio of the number of marbles Ryan had to the number of marbies Audrey had became 1:3. How many marbles did Audrey have at first?
Transcribed Image Text:The ratio of the number of marbles Ryan had to the number of marbles Audrey nad at first was 2:7. After Ryan bought another 20 marbles and Audrey gave away 80 marbles, the ratio of the number of marbles Ryan had to the number of marbies Audrey had became 1:3. How many marbles did Audrey have at first?
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