The correct answer is 29/20
8x^2 - 16x - 15 = 0
x = [ -(-16) +/- sqrt((-16)^2 - 4*8*-15) / ] 2*8
= 2.696, -0.696
4x + 5 5x 4x + 5 - 5x -x + 5
---------------- - ---------------- = ------------------ = -------------------
6x^2 - x - 12 6x^2 - x - 12 6x^2 - x - 12 6x^2 - x - 12
Answer:
Step-by-step explanation:
24,000 = 24 thousands
30,000 = 30 thousands
3,000 = 3 thousands
2,4000 = 2.4 thousands
"x" years
24 + 3x = 30 + 2.4x
3x - 2.4x = 30 - 24
0.6x = 6
x = <em>10 years</em>
