# Math Help - short question :)

1. ## short question :)

okay one more question LOL!!

a bath toy bought for $x is sold for$24, making x% profit. What was the cost of the toy?

2. x = 24 - 24(x/100)
x = 24 - 0,24x
1,24x = 24
x= 19,35........

3. Originally Posted by LaylaSam
okay one more question LOL!!

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.

4. 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!

5. ohh now it kinda makes more sence...