Answer:
1 of 3 failed means. Out of 3, one of those failed or around 33% failed.
2010 47 +ten thousand split decide and
0 > -3x - 2x
0 > -5x...divide by -5 and change inequality sign
0/-5 < x......a fraction with a numerator of 0 = 0
0 < x <==
3/4 + 3/8= 9/8
9/8 - 5/8 = 4/8 or 2/4 or 1/2
Hope this helps!