Posted by Lesly on Monday, January 3, 2011 at 5:24pm.
Simon and Jimmy had 167 stamps
altogether. Simon gave 4/7 of his stamps to Trina, and Jimmy gave 37 stamps to Trina. Simon and Jimmy had the same number of stamps left. How many stamps did Jimmy have in the beginning?
Please Help ME:
I need a formula

Math  Reiny, Monday, January 3, 2011 at 5:41pm
let the number of stamps that Simon has be x
then the number of stamps that Jimmy has be 167x
Simon gives 4/7 of his to Trina, so he has (3/7)x left
Jimmy gives 37 to Trina, so he has 167x  37 or 130x left
but now they have the same
solve : (3/7)x = 130  x
hint: multiply both sides by 7 etc.

Math  Anonymous, Saturday, April 16, 2011 at 1:53pm
72

Math  Anonymous, Wednesday, November 28, 2012 at 7:43pm
Pretty sure it's 76.

Math  tiny t, Wednesday, September 4, 2013 at 9:50pm
Simon started with 91 and Jimmy started with 76. Trina has 89 when it is done.

Math  Anonymous, Friday, July 17, 2015 at 12:46pm
76
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