## Algebra 1

a) P(yellow then pink) = P(green then yellow) Let $x$ be the number of pink mints, so $80-x$ is the number of green mints. $20/100 * x/99 = (80-x)/100 * 20/99$ $20*x/9900 = (80-x)*20/9900$ $20x/9900 = 1600-20x/9900$ $20x = 1600-20x$ $40x = 1600$ $40x/40 = 1600/40$ $x = 40$ b) P (yellow then pink) > P (green then yellow) $20/100 * x/99 > (80-x)/100 * 20/99$ $20x /9900 > (80-x)*20/9900$ $20x > 1600 -20x$ $40x > 1600$ $40x/40 > 1600/40$ $x > 40$