okay one more question LOL!! Its a quadratic solution a bath toy bought for $x is sold for $24, making x% profit. What was the cost of the toy?
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x = 24 - 24(x/100) x = 24 - 0,24x 1,24x = 24 x= 19,35........
Originally Posted by LaylaSam okay one more question LOL!! Its a quadratic solution a bath toy bought for $x is sold for $24, making x% profit. What was the cost of the toy? Profit = 24 - x. Profit = x% of x = (x/100)x = x^2/100. Therefore 24 - x = x^2/100. Solve for x. Reject the negative solution.
Nope, Mr Yvginkel x(1 + x/100) = 24 x + x^2/100 = 24 100x + x^2 = 2400 x^2 + 100x - 2400 = 0 (x + 120)(x - 20) = 0 Wrap it up!
ohh now it kinda makes more sence...
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