
Carol H. answered 09/06/17
Tutor
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Experienced Mathematics Tutor w/ Master's Degree in Math
Let x = Jim's contribution
Let 2x - 400 = John's contribution
x + 2x - 400 = 950
3x = 1350
x = $450 - Jim's contribution
2x - 400 = 2(450) - 400 = $500 - John's contribution
Scott, you should have contacted us sooner. :)