Question 312695: Please help me solve this equation: 60=[400/(1+r)^3]. Find the value of r. Found 2 solutions by nyc_function, Fombitz:Answer by nyc_function(2741) (Show Source):
You can put this solution on YOUR website! 60 = 400/(r + 1)^3
60(r + 1)^3 = 400
60(r^3 + 3r^2 + 3r + 1) = 400
After doing the math on paper, I got r = 0.88
