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Bob has 3/4 as much money as Dan. Dan received another $15. As a result, Bob had 6/11 as much money as Dan. How much did Dan have at first?

 Apr 21, 2021
 #1
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b = 3/4 d     <======Given

 

then

 

b = 6/11( d+15)         Sub in the red equation

3/4d = 6/11d + 90/11

d = 40   dollars originally

 Apr 21, 2021

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