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Cody and Paul had some button magnets. If Cody gave Paul 7 button magnets. He would 3/4 as many button magnets as Paul. If Cody gave Paul 27 button magnets, he would have 1/3 as many button magnets as Paul. How many button magnets did Cody have?

 Aug 25, 2021
 #1
avatar+114536 
+1

C-7=3/4(P+7)

4(c-7)=3(P+7)

4C-28=3P+21

4C-3P=21+28

4C-3P=49       (1)

 

C-27=1/3(P+27)

3C-81=P+27

3C-P=108       (2)

 

check what I have done and then solve simultaneously.     

 Aug 28, 2021

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